13156738 has 8 divisors (see below), whose sum is σ = 22554432. Its totient is φ = 5638596.

The previous prime is 13156733. The next prime is 13156763. The reversal of 13156738 is 83765131.

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

It is not an unprimeable number, because it can be changed into a prime (13156733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469870 + ... + 469897.

It is an arithmetic number, because the mean of its divisors is an integer number (2819304).

Almost surely, 2^13156738 is an apocalyptic number.

13156738 is a deficient number, since it is larger than the sum of its proper divisors (9397694).

13156738 is an equidigital number, since it uses as much as digits as its factorization.

13156738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939776.

The product of its digits is 15120, while the sum is 34.

The square root of 13156738 is about 3627.2218018754. The cubic root of 13156738 is about 236.0746795165.

The spelling of 13156738 in words is "thirteen million, one hundred fifty-six thousand, seven hundred thirty-eight".