15272461 has 2 divisors, whose sum is σ = 15272462. Its totient is φ = 15272460.

The previous prime is 15272423. The next prime is 15272471. The reversal of 15272461 is 16427251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15256836 + 15625 = 3906^2 + 125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15272461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15272401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7636230 + 7636231.

It is an arithmetic number, because the mean of its divisors is an integer number (7636231).

Almost surely, 2^15272461 is an apocalyptic number.

It is an amenable number.

15272461 is a deficient number, since it is larger than the sum of its proper divisors (1).

15272461 is an equidigital number, since it uses as much as digits as its factorization.

15272461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 28.

The square root of 15272461 is about 3907.9996161719. Note that the first 3 decimals coincide. The cubic root of 15272461 is about 248.1054713104.

The spelling of 15272461 in words is "fifteen million, two hundred seventy-two thousand, four hundred sixty-one".