13115493 has 16 divisors (see below), whose sum is σ = 19536000. Its totient is φ = 8696160.

The previous prime is 13115489. The next prime is 13115513. The reversal of 13115493 is 39451131.

It is not a de Polignac number, because 13115493 - 2² = 13115489 is a prime.

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 (13115423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4153 + ... + 6593.

It is an arithmetic number, because the mean of its divisors is an integer number (1221000).

Almost surely, 2^13115493 is an apocalyptic number.

It is an amenable number.

13115493 is a deficient number, since it is larger than the sum of its proper divisors (6420507).

13115493 is a wasteful number, since it uses less digits than its factorization.

13115493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649 (or 2643 counting only the distinct ones).

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

The square root of 13115493 is about 3621.5318582059. The cubic root of 13115493 is about 235.8277314600.

The spelling of 13115493 in words is "thirteen million, one hundred fifteen thousand, four hundred ninety-three".