118879517 has 2 divisors, whose sum is σ = 118879518. Its totient is φ = 118879516.

The previous prime is 118879499. The next prime is 118879543. The reversal of 118879517 is 715978811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109704676 + 9174841 = 10474^2 + 3029^2 .

It is a cyclic number.

It is not a de Polignac number, because 118879517 - 2²⁰ = 117830941 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118879577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59439758 + 59439759.

It is an arithmetic number, because the mean of its divisors is an integer number (59439759).

Almost surely, 2^118879517 is an apocalyptic number.

It is an amenable number.

118879517 is a deficient number, since it is larger than the sum of its proper divisors (1).

118879517 is an equidigital number, since it uses as much as digits as its factorization.

118879517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 47.

The square root of 118879517 is about 10903.1883868894. The cubic root of 118879517 is about 491.7024179819.

The spelling of 118879517 in words is "one hundred eighteen million, eight hundred seventy-nine thousand, five hundred seventeen".