118651139 has 2 divisors, whose sum is σ = 118651140. Its totient is φ = 118651138.

The previous prime is 118651133. The next prime is 118651213. The reversal of 118651139 is 931156811.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118651139 - 2¹² = 118647043 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 118651099 and 118651108.

It is not a weakly prime, because it can be changed into another prime (118651133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59325569 + 59325570.

It is an arithmetic number, because the mean of its divisors is an integer number (59325570).

Almost surely, 2^118651139 is an apocalyptic number.

118651139 is a deficient number, since it is larger than the sum of its proper divisors (1).

118651139 is an equidigital number, since it uses as much as digits as its factorization.

118651139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 35.

The square root of 118651139 is about 10892.7103606036. The cubic root of 118651139 is about 491.3873482839.

It can be divided in two parts, 1186 and 51139, that added together give a palindrome (52325).

The spelling of 118651139 in words is "one hundred eighteen million, six hundred fifty-one thousand, one hundred thirty-nine".