13332431 has 8 divisors (see below), whose sum is σ = 15762720. Its totient is φ = 11033568.

The previous prime is 13332427. The next prime is 13332439. The reversal of 13332431 is 13423331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13332431 - 2² = 13332427 is a prime.

It is a super-2 number, since 2×13332431² = 355507432739522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13332439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32636 + ... + 33041.

It is an arithmetic number, because the mean of its divisors is an integer number (1970340).

Almost surely, 2^13332431 is an apocalyptic number.

13332431 is a deficient number, since it is larger than the sum of its proper divisors (2430289).

13332431 is an equidigital number, since it uses as much as digits as its factorization.

13332431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65713.

The product of its digits is 648, while the sum is 20.

The square root of 13332431 is about 3651.3601575303. The cubic root of 13332431 is about 237.1208710063.

Adding to 13332431 its reverse (13423331), we get a palindrome (26755762).

The spelling of 13332431 in words is "thirteen million, three hundred thirty-two thousand, four hundred thirty-one".