115040645 has 4 divisors (see below), whose sum is σ = 138048780. Its totient is φ = 92032512.

The previous prime is 115040633. The next prime is 115040647. The reversal of 115040645 is 546040511.

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 65788321 + 49252324 = 8111^2 + 7018^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115040645 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115040647) 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, 11504060 + ... + 11504069.

It is an arithmetic number, because the mean of its divisors is an integer number (34512195).

Almost surely, 2^115040645 is an apocalyptic number.

It is an amenable number.

115040645 is a deficient number, since it is larger than the sum of its proper divisors (23008135).

115040645 is an equidigital number, since it uses as much as digits as its factorization.

115040645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23008134.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 115040645 is about 10725.7002102427. The cubic root of 115040645 is about 486.3516974813.

The spelling of 115040645 in words is "one hundred fifteen million, forty thousand, six hundred forty-five".