13390147 has 4 divisors (see below), whose sum is σ = 13459720. Its totient is φ = 13320576.

The previous prime is 13390129. The next prime is 13390177. The reversal of 13390147 is 74109331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13390147 - 2⁷ = 13390019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13390177) 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, 34497 + ... + 34882.

It is an arithmetic number, because the mean of its divisors is an integer number (3364930).

Almost surely, 2^13390147 is an apocalyptic number.

13390147 is a deficient number, since it is larger than the sum of its proper divisors (69573).

13390147 is an equidigital number, since it uses as much as digits as its factorization.

13390147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69572.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 13390147 is about 3659.2549788174. The cubic root of 13390147 is about 237.4625433081.

Adding to 13390147 its reverse (74109331), we get a palindrome (87499478).

The spelling of 13390147 in words is "thirteen million, three hundred ninety thousand, one hundred forty-seven".