115018881 has 4 divisors (see below), whose sum is σ = 153358512. Its totient is φ = 76679252.

The previous prime is 115018867. The next prime is 115018909. The reversal of 115018881 is 188810511.

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 115018881 - 2⁹ = 115018369 is a prime.

It is a super-2 number, since 2×115018881² = 26458685972984322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115018801) 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, 19169811 + ... + 19169816.

It is an arithmetic number, because the mean of its divisors is an integer number (38339628).

Almost surely, 2^115018881 is an apocalyptic number.

It is an amenable number.

115018881 is a deficient number, since it is larger than the sum of its proper divisors (38339631).

115018881 is an equidigital number, since it uses as much as digits as its factorization.

115018881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38339630.

The product of its (nonzero) digits is 2560, while the sum is 33.

The square root of 115018881 is about 10724.6855897970. The cubic root of 115018881 is about 486.3210253482.

The spelling of 115018881 in words is "one hundred fifteen million, eighteen thousand, eight hundred eighty-one".