15001265 has 8 divisors (see below), whose sum is σ = 18622440. Its totient is φ = 11587072.

The previous prime is 15001249. The next prime is 15001289. The reversal of 15001265 is 56210051.

It can be written as a sum of positive squares in 4 ways, for example, as 833569 + 14167696 = 913^2 + 3764^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15001265 - 2⁴ = 15001249 is a prime.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 51584 + ... + 51873.

It is an arithmetic number, because the mean of its divisors is an integer number (2327805).

Almost surely, 2^15001265 is an apocalyptic number.

It is an amenable number.

15001265 is a deficient number, since it is larger than the sum of its proper divisors (3621175).

15001265 is a wasteful number, since it uses less digits than its factorization.

15001265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103491.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 15001265 is about 3873.1466535622. The cubic root of 15001265 is about 246.6281400343.

The spelling of 15001265 in words is "fifteen million, one thousand, two hundred sixty-five".