13156245 has 24 divisors (see below), whose sum is σ = 23542272. Its totient is φ = 6789600.

The previous prime is 13156163. The next prime is 13156259. The reversal of 13156245 is 54265131.

13156245 is a `hidden beast` number, since 1 + 31 + 5 + 624 + 5 = 666.

It is not a de Polignac number, because 13156245 - 2¹⁰ = 13155221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3321 + ... + 6110.

It is an arithmetic number, because the mean of its divisors is an integer number (980928).

Almost surely, 2^13156245 is an apocalyptic number.

13156245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13156245 is a deficient number, since it is larger than the sum of its proper divisors (10386027).

13156245 is a wasteful number, since it uses less digits than its factorization.

13156245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9473 (or 9470 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 13156245 is about 3627.1538428911. The cubic root of 13156245 is about 236.0717308050.

The spelling of 13156245 in words is "thirteen million, one hundred fifty-six thousand, two hundred forty-five".