115451018 has 4 divisors (see below), whose sum is σ = 173176530. Its totient is φ = 57725508.

The previous prime is 115451009. The next prime is 115451027. The reversal of 115451018 is 810154511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 810154511 = 73 ⋅11098007.

It is an interprime number because it is at equal distance from previous prime (115451009) and next prime (115451027).

It can be written as a sum of positive squares in only one way, i.e., 114554209 + 896809 = 10703^2 + 947^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28862753 + ... + 28862756.

Almost surely, 2^115451018 is an apocalyptic number.

115451018 is a deficient number, since it is larger than the sum of its proper divisors (57725512).

115451018 is an equidigital number, since it uses as much as digits as its factorization.

115451018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57725511.

The product of its (nonzero) digits is 800, while the sum is 26.

The square root of 115451018 is about 10744.8135395641. The cubic root of 115451018 is about 486.9293158055.

The spelling of 115451018 in words is "one hundred fifteen million, four hundred fifty-one thousand, eighteen".