15001275 has 12 divisors (see below), whose sum is σ = 24802232. Its totient is φ = 8000640.

The previous prime is 15001249. The next prime is 15001289. The reversal of 15001275 is 57210051.

It is not a de Polignac number, because 15001275 - 2⁶ = 15001211 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99934 + ... + 100083.

Almost surely, 2^15001275 is an apocalyptic number.

15001275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15001275 is a deficient number, since it is larger than the sum of its proper divisors (9800957).

15001275 is a wasteful number, since it uses less digits than its factorization.

15001275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200030 (or 200025 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 15001275 is about 3873.1479445020. The cubic root of 15001275 is about 246.6281948360.

It can be divided in two parts, 1500 and 1275, that added together give a triangular number (2775 = T₇₄).

The spelling of 15001275 in words is "fifteen million, one thousand, two hundred seventy-five".