15249245 has 8 divisors (see below), whose sum is σ = 19962720. Its totient is φ = 11090320.

The previous prime is 15249239. The next prime is 15249251. The reversal of 15249245 is 54294251.

It is an interprime number because it is at equal distance from previous prime (15249239) and next prime (15249251).

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

It is not a de Polignac number, because 15249245 - 2¹⁸ = 14987101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138575 + ... + 138684.

It is an arithmetic number, because the mean of its divisors is an integer number (2495340).

Almost surely, 2^15249245 is an apocalyptic number.

It is an amenable number.

15249245 is a deficient number, since it is larger than the sum of its proper divisors (4713475).

15249245 is a wasteful number, since it uses less digits than its factorization.

15249245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277275.

The product of its digits is 14400, while the sum is 32.

The square root of 15249245 is about 3905.0281689125. The cubic root of 15249245 is about 247.9796907146.

The spelling of 15249245 in words is "fifteen million, two hundred forty-nine thousand, two hundred forty-five".