15072131 has 2 divisors, whose sum is σ = 15072132. Its totient is φ = 15072130.

The previous prime is 15072103. The next prime is 15072191. The reversal of 15072131 is 13127051.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15072131 - 2¹⁰ = 15071107 is a prime.

It is a super-2 number, since 2×15072131² = 454338265762322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15072191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7536065 + 7536066.

It is an arithmetic number, because the mean of its divisors is an integer number (7536066).

Almost surely, 2^15072131 is an apocalyptic number.

15072131 is a deficient number, since it is larger than the sum of its proper divisors (1).

15072131 is an equidigital number, since it uses as much as digits as its factorization.

15072131 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 15072131 is about 3882.2842502836. The cubic root of 15072131 is about 247.0158873443.

Adding to 15072131 its reverse (13127051), we get a palindrome (28199182).

The spelling of 15072131 in words is "fifteen million, seventy-two thousand, one hundred thirty-one".