15117249 has 16 divisors (see below), whose sum is σ = 23362560. Its totient is φ = 8515920.

The previous prime is 15117247. The next prime is 15117251. The reversal of 15117249 is 94271151.

It is an interprime number because it is at equal distance from previous prime (15117247) and next prime (15117251).

It is not a de Polignac number, because 15117249 - 2¹ = 15117247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15117241) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3579 + ... + 6560.

It is an arithmetic number, because the mean of its divisors is an integer number (1460160).

Almost surely, 2^15117249 is an apocalyptic number.

It is an amenable number.

15117249 is a deficient number, since it is larger than the sum of its proper divisors (8245311).

15117249 is a wasteful number, since it uses less digits than its factorization.

15117249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10220.

The product of its digits is 2520, while the sum is 30.

The square root of 15117249 is about 3888.0906625232. The cubic root of 15117249 is about 247.2621201796.

The spelling of 15117249 in words is "fifteen million, one hundred seventeen thousand, two hundred forty-nine".