15120137 has 2 divisors, whose sum is σ = 15120138. Its totient is φ = 15120136.

The previous prime is 15120113. The next prime is 15120139. The reversal of 15120137 is 73102151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13388281 + 1731856 = 3659^2 + 1316^2 .

It is an emirp because it is prime and its reverse (73102151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15120137 - 2¹⁰ = 15119113 is a prime.

Together with 15120139, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15120139) 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, 7560068 + 7560069.

It is an arithmetic number, because the mean of its divisors is an integer number (7560069).

Almost surely, 2^15120137 is an apocalyptic number.

It is an amenable number.

15120137 is a deficient number, since it is larger than the sum of its proper divisors (1).

15120137 is an equidigital number, since it uses as much as digits as its factorization.

15120137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 15120137 is about 3888.4620353039. The cubic root of 15120137 is about 247.2778648329.

Adding to 15120137 its reverse (73102151), we get a palindrome (88222288).

The spelling of 15120137 in words is "fifteen million, one hundred twenty thousand, one hundred thirty-seven".