118780715 has 4 divisors (see below), whose sum is σ = 142536864. Its totient is φ = 95024568.

The previous prime is 118780699. The next prime is 118780769. The reversal of 118780715 is 517087811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 118780715 - 2⁴ = 118780699 is a prime.

It is a super-2 number, since 2×118780715² = 28217716511822450, which contains 22 as substring.

It is a Duffinian number.

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, 11878067 + ... + 11878076.

It is an arithmetic number, because the mean of its divisors is an integer number (35634216).

Almost surely, 2^118780715 is an apocalyptic number.

118780715 is a deficient number, since it is larger than the sum of its proper divisors (23756149).

118780715 is an equidigital number, since it uses as much as digits as its factorization.

118780715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23756148.

The product of its (nonzero) digits is 15680, while the sum is 38.

The square root of 118780715 is about 10898.6565685868. The cubic root of 118780715 is about 491.5661605662.

The spelling of 118780715 in words is "one hundred eighteen million, seven hundred eighty thousand, seven hundred fifteen".