115115501 has 4 divisors (see below), whose sum is σ = 115159872. Its totient is φ = 115071132.

The previous prime is 115115489. The next prime is 115115503. The reversal of 115115501 is 105511511.

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.

It is a cyclic number.

It is not a de Polignac number, because 115115501 - 2¹⁰ = 115114477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115115503) 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, 18035 + ... + 23568.

It is an arithmetic number, because the mean of its divisors is an integer number (28789968).

Almost surely, 2^115115501 is an apocalyptic number.

It is an amenable number.

115115501 is a deficient number, since it is larger than the sum of its proper divisors (44371).

115115501 is an equidigital number, since it uses as much as digits as its factorization.

115115501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44370.

The product of its (nonzero) digits is 125, while the sum is 20.

The square root of 115115501 is about 10729.1892051543. The cubic root of 115115501 is about 486.4571629571.

The spelling of 115115501 in words is "one hundred fifteen million, one hundred fifteen thousand, five hundred one".