15131461 has 2 divisors, whose sum is σ = 15131462. Its totient is φ = 15131460.

The previous prime is 15131437. The next prime is 15131471. The reversal of 15131461 is 16413151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13616100 + 1515361 = 3690^2 + 1231^2 .

It is a cyclic number.

It is not a de Polignac number, because 15131461 - 2¹⁷ = 15000389 is a prime.

It is a super-2 number, since 2×15131461² = 457922223989042, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15131471) 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, 7565730 + 7565731.

It is an arithmetic number, because the mean of its divisors is an integer number (7565731).

Almost surely, 2^15131461 is an apocalyptic number.

It is an amenable number.

15131461 is a deficient number, since it is larger than the sum of its proper divisors (1).

15131461 is an equidigital number, since it uses as much as digits as its factorization.

15131461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 22.

The square root of 15131461 is about 3889.9178654568. The cubic root of 15131461 is about 247.3395811120.

The spelling of 15131461 in words is "fifteen million, one hundred thirty-one thousand, four hundred sixty-one".