13231760 has 20 divisors (see below), whose sum is σ = 30764028. Its totient is φ = 5292672.

The previous prime is 13231741. The next prime is 13231781. The reversal of 13231760 is 6713231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1507984 + 11723776 = 1228^2 + 3424^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82619 + ... + 82778.

Almost surely, 2^13231760 is an apocalyptic number.

13231760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13231760 is an abundant number, since it is smaller than the sum of its proper divisors (17532268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13231760 is a wasteful number, since it uses less digits than its factorization.

13231760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165410 (or 165404 counting only the distinct ones).

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

The square root of 13231760 is about 3637.5486251045. The cubic root of 13231760 is about 236.5225422391.

Adding to 13231760 its reverse (6713231), we get a palindrome (19944991).

The spelling of 13231760 in words is "thirteen million, two hundred thirty-one thousand, seven hundred sixty".