115257390653 has 4 divisors (see below), whose sum is σ = 122037237180. Its totient is φ = 108477544128.

The previous prime is 115257390641. The next prime is 115257390659. The reversal of 115257390653 is 356093752511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72931323364 + 42326067289 = 270058^2 + 205733^2 .

It is a cyclic number.

It is not a de Polignac number, because 115257390653 - 2⁸ = 115257390397 is a prime.

It is a super-2 number, since 2×115257390653² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115257390598 and 115257390607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115257390659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3389923238 + ... + 3389923271.

It is an arithmetic number, because the mean of its divisors is an integer number (30509309295).

Almost surely, 2^115257390653 is an apocalyptic number.

It is an amenable number.

115257390653 is a deficient number, since it is larger than the sum of its proper divisors (6779846527).

115257390653 is an equidigital number, since it uses as much as digits as its factorization.

115257390653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6779846526.

The product of its (nonzero) digits is 850500, while the sum is 47.

The spelling of 115257390653 in words is "one hundred fifteen billion, two hundred fifty-seven million, three hundred ninety thousand, six hundred fifty-three".