13157822 has 16 divisors (see below), whose sum is σ = 20757600. Its totient is φ = 6246240.

The previous prime is 13157821. The next prime is 13157831. The reversal of 13157822 is 22875131.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13157821) 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 7 ways as a sum of consecutive naturals, for example, 1679 + ... + 5397.

It is an arithmetic number, because the mean of its divisors is an integer number (1297350).

Almost surely, 2^13157822 is an apocalyptic number.

13157822 is a deficient number, since it is larger than the sum of its proper divisors (7599778).

13157822 is a wasteful number, since it uses less digits than its factorization.

13157822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3811.

The product of its digits is 3360, while the sum is 29.

The square root of 13157822 is about 3627.3712244544. The cubic root of 13157822 is about 236.0811628338.

The spelling of 13157822 in words is "thirteen million, one hundred fifty-seven thousand, eight hundred twenty-two".