115639435 has 4 divisors (see below), whose sum is σ = 138767328. Its totient is φ = 92511544.

The previous prime is 115639429. The next prime is 115639477. The reversal of 115639435 is 534936511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 534936511 = 61 ⋅8769451.

It is a cyclic number.

It is not a de Polignac number, because 115639435 - 2⁹ = 115638923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115639394 and 115639403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11563939 + ... + 11563948.

It is an arithmetic number, because the mean of its divisors is an integer number (34691832).

Almost surely, 2^115639435 is an apocalyptic number.

115639435 is a deficient number, since it is larger than the sum of its proper divisors (23127893).

115639435 is an equidigital number, since it uses as much as digits as its factorization.

115639435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23127892.

The product of its digits is 48600, while the sum is 37.

The square root of 115639435 is about 10753.5777767216. The cubic root of 115639435 is about 487.1940627020.

The spelling of 115639435 in words is "one hundred fifteen million, six hundred thirty-nine thousand, four hundred thirty-five".