13231670 has 16 divisors (see below), whose sum is σ = 24852960. Its totient is φ = 5062464.

The previous prime is 13231667. The next prime is 13231679. The reversal of 13231670 is 7613231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231679) 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, 28535 + ... + 28994.

It is an arithmetic number, because the mean of its divisors is an integer number (1553310).

Almost surely, 2^13231670 is an apocalyptic number.

13231670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13231670 is a deficient number, since it is larger than the sum of its proper divisors (11621290).

13231670 is a wasteful number, since it uses less digits than its factorization.

13231670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57559.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 13231670 is about 3637.5362541149. The cubic root of 13231670 is about 236.5220059769.

The spelling of 13231670 in words is "thirteen million, two hundred thirty-one thousand, six hundred seventy".