15117285 has 8 divisors (see below), whose sum is σ = 24187680. Its totient is φ = 8062544.

The previous prime is 15117251. The next prime is 15117287. The reversal of 15117285 is 58271151.

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 15117285 - 2¹⁰ = 15116261 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15117287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503895 + ... + 503924.

It is an arithmetic number, because the mean of its divisors is an integer number (3023460).

Almost surely, 2^15117285 is an apocalyptic number.

15117285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15117285 is a deficient number, since it is larger than the sum of its proper divisors (9070395).

15117285 is a wasteful number, since it uses less digits than its factorization.

15117285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007827.

The product of its digits is 2800, while the sum is 30.

The square root of 15117285 is about 3888.0952920421. The cubic root of 15117285 is about 247.2623164549.

The spelling of 15117285 in words is "fifteen million, one hundred seventeen thousand, two hundred eighty-five".