15113493 has 32 divisors (see below), whose sum is σ = 24969600. Its totient is φ = 8978688.

The previous prime is 15113491. The next prime is 15113503. The reversal of 15113493 is 39431151.

It is not a de Polignac number, because 15113493 - 2¹ = 15113491 is a prime.

It is a super-2 number, since 2×15113493² = 456835341322098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15113491) 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 31 ways as a sum of consecutive naturals, for example, 7855 + ... + 9587.

It is an arithmetic number, because the mean of its divisors is an integer number (780300).

Almost surely, 2^15113493 is an apocalyptic number.

It is an amenable number.

15113493 is a deficient number, since it is larger than the sum of its proper divisors (9856107).

15113493 is a wasteful number, since it uses less digits than its factorization.

15113493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778 (or 1772 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 15113493 is about 3887.6076190891. The cubic root of 15113493 is about 247.2416404074.

The spelling of 15113493 in words is "fifteen million, one hundred thirteen thousand, four hundred ninety-three".