15149913 has 8 divisors (see below), whose sum is σ = 20227776. Its totient is φ = 10086000.

The previous prime is 15149887. The next prime is 15149969. The reversal of 15149913 is 31994151.

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

It is not a de Polignac number, because 15149913 - 2⁸ = 15149657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15149993) 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, 613 + ... + 5538.

It is an arithmetic number, because the mean of its divisors is an integer number (2528472).

Almost surely, 2^15149913 is an apocalyptic number.

It is an amenable number.

15149913 is a deficient number, since it is larger than the sum of its proper divisors (5077863).

15149913 is an equidigital number, since it uses as much as digits as its factorization.

15149913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6975.

The product of its digits is 4860, while the sum is 33.

The square root of 15149913 is about 3892.2889152785. The cubic root of 15149913 is about 247.4400793621.

The spelling of 15149913 in words is "fifteen million, one hundred forty-nine thousand, nine hundred thirteen".