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131450122553 = 1166871126519
BaseRepresentation
bin111101001101100001…
…0011011000100111001
3110120021222121002210112
41322123002123010321
54123202212410203
6140215400154105
712332312414621
oct1723302330471
9416258532715
10131450122553
1150825192722
1221586468935
13c51b452409
14650dd07881
1536453096d8
hex1e9b09b139

131450122553 has 4 divisors (see below), whose sum is σ = 131451365760. Its totient is φ = 131448879348.

The previous prime is 131450122549. The next prime is 131450122597. The reversal of 131450122553 is 355221054131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 355221054131 = 973662072723.

It is a cyclic number.

It is not a de Polignac number, because 131450122553 - 22 = 131450122549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131450125553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446573 + ... + 679946.

It is an arithmetic number, because the mean of its divisors is an integer number (32862841440).

Almost surely, 2131450122553 is an apocalyptic number.

It is an amenable number.

131450122553 is a deficient number, since it is larger than the sum of its proper divisors (1243207).

131450122553 is a wasteful number, since it uses less digits than its factorization.

131450122553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243206.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 131450122553 its reverse (355221054131), we get a palindrome (486671176684).

The spelling of 131450122553 in words is "one hundred thirty-one billion, four hundred fifty million, one hundred twenty-two thousand, five hundred fifty-three".

Divisors: 1 116687 1126519 131450122553