118630139 has 2 divisors, whose sum is σ = 118630140. Its totient is φ = 118630138.

The previous prime is 118630111. The next prime is 118630207. The reversal of 118630139 is 931036811.

It is a weak prime.

It is an emirp because it is prime and its reverse (931036811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118630139 - 2²⁴ = 101852923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (118632139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59315069 + 59315070.

It is an arithmetic number, because the mean of its divisors is an integer number (59315070).

Almost surely, 2^118630139 is an apocalyptic number.

118630139 is a deficient number, since it is larger than the sum of its proper divisors (1).

118630139 is an equidigital number, since it uses as much as digits as its factorization.

118630139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 118630139 is about 10891.7463705321. The cubic root of 118630139 is about 491.3583564477.

The spelling of 118630139 in words is "one hundred eighteen million, six hundred thirty thousand, one hundred thirty-nine".