13156147 has 6 divisors (see below), whose sum is σ = 13975868. Its totient is φ = 12381984.

The previous prime is 13156109. The next prime is 13156153. The reversal of 13156147 is 74165131.

It is not a de Polignac number, because 13156147 - 2⁷ = 13156019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13156447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22473 + ... + 23050.

Almost surely, 2^13156147 is an apocalyptic number.

13156147 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13156147 is a deficient number, since it is larger than the sum of its proper divisors (819721).

13156147 is an equidigital number, since it uses as much as digits as its factorization.

13156147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45557 (or 45540 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 13156147 is about 3627.1403336513. The cubic root of 13156147 is about 236.0711446427.

The spelling of 13156147 in words is "thirteen million, one hundred fifty-six thousand, one hundred forty-seven".