118306961 has 4 divisors (see below), whose sum is σ = 125266212. Its totient is φ = 111347712.

The previous prime is 118306957. The next prime is 118306973. The reversal of 118306961 is 169603811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 169603811 = 13 ⋅13046447.

It can be written as a sum of positive squares in 2 ways, for example, as 51394561 + 66912400 = 7169^2 + 8180^2 .

It is a cyclic number.

It is not a de Polignac number, because 118306961 - 2² = 118306957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118300961) 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, 3479600 + ... + 3479633.

It is an arithmetic number, because the mean of its divisors is an integer number (31316553).

Almost surely, 2^118306961 is an apocalyptic number.

It is an amenable number.

118306961 is a deficient number, since it is larger than the sum of its proper divisors (6959251).

118306961 is an equidigital number, since it uses as much as digits as its factorization.

118306961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6959250.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 118306961 is about 10876.9003397108. The cubic root of 118306961 is about 490.9117565335.

The spelling of 118306961 in words is "one hundred eighteen million, three hundred six thousand, nine hundred sixty-one".