15040131 has 4 divisors (see below), whose sum is σ = 20053512. Its totient is φ = 10026752.

The previous prime is 15040127. The next prime is 15040133. The reversal of 15040131 is 13104051.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15040131 - 2² = 15040127 is a prime.

It is a super-2 number, since 2×15040131² = 452411080994322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15040131.

It is not an unprimeable number, because it can be changed into a prime (15040133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2506686 + ... + 2506691.

It is an arithmetic number, because the mean of its divisors is an integer number (5013378).

Almost surely, 2^15040131 is an apocalyptic number.

15040131 is a deficient number, since it is larger than the sum of its proper divisors (5013381).

15040131 is an equidigital number, since it uses as much as digits as its factorization.

15040131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5013380.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 15040131 is about 3878.1607754192. The cubic root of 15040131 is about 246.8409483772.

Adding to 15040131 its reverse (13104051), we get a palindrome (28144182).

The spelling of 15040131 in words is "fifteen million, forty thousand, one hundred thirty-one".