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136020125 = 531088161
BaseRepresentation
bin10000001101110…
…00000010011101
3100110221112112102
420012320002131
5234310121000
621255214445
73241103063
oct1006700235
9313845472
10136020125
116a863a2a
1239677425
13222459a7
14140ca033
15be1c3d5
hex81b809d

136020125 has 8 divisors (see below), whose sum is σ = 169753272. Its totient is φ = 108816000.

The previous prime is 136020089. The next prime is 136020127. The reversal of 136020125 is 521020631.

It can be written as a sum of positive squares in 4 ways, for example, as 1413721 + 134606404 = 1189^2 + 11602^2 .

It is not a de Polignac number, because 136020125 - 26 = 136020061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136020097 and 136020106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136020127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543956 + ... + 544205.

It is an arithmetic number, because the mean of its divisors is an integer number (21219159).

Almost surely, 2136020125 is an apocalyptic number.

It is an amenable number.

136020125 is a deficient number, since it is larger than the sum of its proper divisors (33733147).

136020125 is an equidigital number, since it uses as much as digits as its factorization.

136020125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088176 (or 1088166 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 136020125 is about 11662.7666100287. The cubic root of 136020125 is about 514.2816830776.

Adding to 136020125 its reverse (521020631), we get a palindrome (657040756).

The spelling of 136020125 in words is "one hundred thirty-six million, twenty thousand, one hundred twenty-five".

Divisors: 1 5 25 125 1088161 5440805 27204025 136020125