15128137 has 2 divisors, whose sum is σ = 15128138. Its totient is φ = 15128136.

The previous prime is 15128129. The next prime is 15128167. The reversal of 15128137 is 73182151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14470416 + 657721 = 3804^2 + 811^2 .

It is a cyclic number.

It is not a de Polignac number, because 15128137 - 2³ = 15128129 is a prime.

It is not a weakly prime, because it can be changed into another prime (15128167) 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, 7564068 + 7564069.

It is an arithmetic number, because the mean of its divisors is an integer number (7564069).

Almost surely, 2^15128137 is an apocalyptic number.

It is an amenable number.

15128137 is a deficient number, since it is larger than the sum of its proper divisors (1).

15128137 is an equidigital number, since it uses as much as digits as its factorization.

15128137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 28.

The square root of 15128137 is about 3889.4905836112. The cubic root of 15128137 is about 247.3214683649.

The spelling of 15128137 in words is "fifteen million, one hundred twenty-eight thousand, one hundred thirty-seven".