15165131 has 2 divisors, whose sum is σ = 15165132. Its totient is φ = 15165130.

The previous prime is 15165091. The next prime is 15165133. The reversal of 15165131 is 13156151.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15165131 - 2¹⁴ = 15148747 is a prime.

It is a super-2 number, since 2×15165131² = 459962396494322, which contains 22 as substring.

Together with 15165133, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 15165097 and 15165106.

It is not a weakly prime, because it can be changed into another prime (15165133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7582565 + 7582566.

It is an arithmetic number, because the mean of its divisors is an integer number (7582566).

Almost surely, 2^15165131 is an apocalyptic number.

15165131 is a deficient number, since it is larger than the sum of its proper divisors (1).

15165131 is an equidigital number, since it uses as much as digits as its factorization.

15165131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 450, while the sum is 23.

The square root of 15165131 is about 3894.2433154594. The cubic root of 15165131 is about 247.5229023462.

The spelling of 15165131 in words is "fifteen million, one hundred sixty-five thousand, one hundred thirty-one".