15325081 has 2 divisors, whose sum is σ = 15325082. Its totient is φ = 15325080.

The previous prime is 15325049. The next prime is 15325087. The reversal of 15325081 is 18052351.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10830681 + 4494400 = 3291^2 + 2120^2 .

It is a cyclic number.

It is not a de Polignac number, because 15325081 - 2⁵ = 15325049 is a prime.

It is a super-2 number, since 2×15325081² = 469716215313122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15325087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7662540 + 7662541.

It is an arithmetic number, because the mean of its divisors is an integer number (7662541).

Almost surely, 2^15325081 is an apocalyptic number.

It is an amenable number.

15325081 is a deficient number, since it is larger than the sum of its proper divisors (1).

15325081 is an equidigital number, since it uses as much as digits as its factorization.

15325081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 15325081 is about 3914.7261717775. The cubic root of 15325081 is about 248.3900869741.

The spelling of 15325081 in words is "fifteen million, three hundred twenty-five thousand, eighty-one".