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133110311225 = 525324412449
BaseRepresentation
bin111101111110111111…
…1100010100100111001
3110201120200112102111212
41323331333202210321
54140102214424400
6141052223532505
712421411656053
oct1737577424471
9421520472455
10133110311225
11514a7333a81
122196a45a135
13c72439cc88
14662a5c88d3
1536e0e47335
hex1efdfe2939

133110311225 has 6 divisors (see below), whose sum is σ = 165056785950. Its totient is φ = 106488248960.

The previous prime is 133110311197. The next prime is 133110311227. The reversal of 133110311225 is 522113011331.

It can be written as a sum of positive squares in 3 ways, for example, as 6613430329 + 126496880896 = 81323^2 + 355664^2 .

It is not a de Polignac number, because 133110311225 - 26 = 133110311161 is a prime.

It is a super-2 number, since 2×1331103112252 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133110311225.

It is not an unprimeable number, because it can be changed into a prime (133110311227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2662206200 + ... + 2662206249.

It is an arithmetic number, because the mean of its divisors is an integer number (27509464325).

Almost surely, 2133110311225 is an apocalyptic number.

It is an amenable number.

133110311225 is a deficient number, since it is larger than the sum of its proper divisors (31946474725).

133110311225 is an equidigital number, since it uses as much as digits as its factorization.

133110311225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5324412459 (or 5324412454 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

Adding to 133110311225 its reverse (522113011331), we get a palindrome (655223322556).

The spelling of 133110311225 in words is "one hundred thirty-three billion, one hundred ten million, three hundred eleven thousand, two hundred twenty-five".

Divisors: 1 5 25 5324412449 26622062245 133110311225