113187479539 has 2 divisors, whose sum is σ = 113187479540. Its totient is φ = 113187479538.

The previous prime is 113187479521. The next prime is 113187479567. The reversal of 113187479539 is 935974781311.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113187479539 is a prime.

It is a super-2 number, since 2×113187479539² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (113187479519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56593739769 + 56593739770.

It is an arithmetic number, because the mean of its divisors is an integer number (56593739770).

Almost surely, 2^113187479539 is an apocalyptic number.

113187479539 is a deficient number, since it is larger than the sum of its proper divisors (1).

113187479539 is an equidigital number, since it uses as much as digits as its factorization.

113187479539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5715360, while the sum is 58.

The spelling of 113187479539 in words is "one hundred thirteen billion, one hundred eighty-seven million, four hundred seventy-nine thousand, five hundred thirty-nine".