15128413 has 2 divisors, whose sum is σ = 15128414. Its totient is φ = 15128412.

The previous prime is 15128369. The next prime is 15128423. The reversal of 15128413 is 31482151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14953689 + 174724 = 3867^2 + 418^2 .

It is a cyclic number.

It is not a de Polignac number, because 15128413 - 2¹⁷ = 14997341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15128423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7564206 + 7564207.

It is an arithmetic number, because the mean of its divisors is an integer number (7564207).

Almost surely, 2^15128413 is an apocalyptic number.

It is an amenable number.

15128413 is a deficient number, since it is larger than the sum of its proper divisors (1).

15128413 is an equidigital number, since it uses as much as digits as its factorization.

15128413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 25.

The square root of 15128413 is about 3889.5260636741. The cubic root of 15128413 is about 247.3229724124.

The spelling of 15128413 in words is "fifteen million, one hundred twenty-eight thousand, four hundred thirteen".