118916977 has 4 divisors (see below), whose sum is σ = 120591936. Its totient is φ = 117242020.

The previous prime is 118916971. The next prime is 118917013. The reversal of 118916977 is 779619811.

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, and also an emirpimes, since its reverse is a distinct semiprime: 779619811 = 23719 ⋅32869.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118916977 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118916977.

It is not an unprimeable number, because it can be changed into a prime (118916971) 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, 837373 + ... + 837514.

It is an arithmetic number, because the mean of its divisors is an integer number (30147984).

Almost surely, 2^118916977 is an apocalyptic number.

It is an amenable number.

118916977 is a deficient number, since it is larger than the sum of its proper divisors (1674959).

118916977 is an equidigital number, since it uses as much as digits as its factorization.

118916977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674958.

The product of its digits is 190512, while the sum is 49.

The square root of 118916977 is about 10904.9060977158. The cubic root of 118916977 is about 491.7540591692.

The spelling of 118916977 in words is "one hundred eighteen million, nine hundred sixteen thousand, nine hundred seventy-seven".