13157983 has 4 divisors (see below), whose sum is σ = 13932000. Its totient is φ = 12383968.

The previous prime is 13157971. The next prime is 13157987. The reversal of 13157983 is 38975131.

It is a happy number.

13157983 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 13157983 - 2⁵ = 13157951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13157987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386983 + ... + 387016.

It is an arithmetic number, because the mean of its divisors is an integer number (3483000).

Almost surely, 2^13157983 is an apocalyptic number.

13157983 is a deficient number, since it is larger than the sum of its proper divisors (774017).

13157983 is an equidigital number, since it uses as much as digits as its factorization.

13157983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774016.

The product of its digits is 22680, while the sum is 37.

The square root of 13157983 is about 3627.3934167664. The cubic root of 13157983 is about 236.0821257316.

The spelling of 13157983 in words is "thirteen million, one hundred fifty-seven thousand, nine hundred eighty-three".