13332491 has 2 divisors, whose sum is σ = 13332492. Its totient is φ = 13332490.

The previous prime is 13332481. The next prime is 13332499. The reversal of 13332491 is 19423331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13332491 - 2⁶ = 13332427 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13332491.

It is not a weakly prime, because it can be changed into another prime (13332499) by changing a digit.

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 as a sum of consecutive naturals, namely, 6666245 + 6666246.

It is an arithmetic number, because the mean of its divisors is an integer number (6666246).

Almost surely, 2^13332491 is an apocalyptic number.

13332491 is a deficient number, since it is larger than the sum of its proper divisors (1).

13332491 is an equidigital number, since it uses as much as digits as its factorization.

13332491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 26.

The square root of 13332491 is about 3651.3683736375. The cubic root of 13332491 is about 237.1212267112.

The spelling of 13332491 in words is "thirteen million, three hundred thirty-two thousand, four hundred ninety-one".