13023156 has 24 divisors (see below), whose sum is σ = 32175360. Its totient is φ = 4085632.

The previous prime is 13023133. The next prime is 13023167. The reversal of 13023156 is 65132031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31716 + ... + 32123.

It is an arithmetic number, because the mean of its divisors is an integer number (1340640).

Almost surely, 2^13023156 is an apocalyptic number.

It is an amenable number.

13023156 is an abundant number, since it is smaller than the sum of its proper divisors (19152204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13023156 is a wasteful number, since it uses less digits than its factorization.

13023156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63863 (or 63861 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 13023156 is about 3608.7610062181. The cubic root of 13023156 is about 235.2729949519.

Adding to 13023156 its reverse (65132031), we get a palindrome (78155187).

The spelling of 13023156 in words is "thirteen million, twenty-three thousand, one hundred fifty-six".