118125131 has 2 divisors, whose sum is σ = 118125132. Its totient is φ = 118125130.

The previous prime is 118125121. The next prime is 118125151. The reversal of 118125131 is 131521811.

It is a weak prime.

It is an emirp because it is prime and its reverse (131521811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118125131 - 2⁶ = 118125067 is a prime.

It is a super-2 number, since 2×118125131² = 27907093147534322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 118125097 and 118125106.

It is not a weakly prime, because it can be changed into another prime (118125101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59062565 + 59062566.

It is an arithmetic number, because the mean of its divisors is an integer number (59062566).

Almost surely, 2^118125131 is an apocalyptic number.

118125131 is a deficient number, since it is larger than the sum of its proper divisors (1).

118125131 is an equidigital number, since it uses as much as digits as its factorization.

118125131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 23.

The square root of 118125131 is about 10868.5385862130. The cubic root of 118125131 is about 490.6601279080.

Adding to 118125131 its reverse (131521811), we get a palindrome (249646942).

The spelling of 118125131 in words is "one hundred eighteen million, one hundred twenty-five thousand, one hundred thirty-one".