120512137 has 2 divisors, whose sum is σ = 120512138. Its totient is φ = 120512136.

The previous prime is 120512131. The next prime is 120512173. The reversal of 120512137 is 731215021.

It is a happy number.

Together with next prime (120512173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96118416 + 24393721 = 9804^2 + 4939^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120512137 is a prime.

It is not a weakly prime, because it can be changed into another prime (120512131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60256068 + 60256069.

It is an arithmetic number, because the mean of its divisors is an integer number (60256069).

Almost surely, 2^120512137 is an apocalyptic number.

It is an amenable number.

120512137 is a deficient number, since it is larger than the sum of its proper divisors (1).

120512137 is an equidigital number, since it uses as much as digits as its factorization.

120512137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 120512137 is about 10977.8020113318. The cubic root of 120512137 is about 493.9431070323.

Adding to 120512137 its reverse (731215021), we get a palindrome (851727158).

The spelling of 120512137 in words is "one hundred twenty million, five hundred twelve thousand, one hundred thirty-seven".