13415491 has 2 divisors, whose sum is σ = 13415492. Its totient is φ = 13415490.

The previous prime is 13415483. The next prime is 13415537. The reversal of 13415491 is 19451431.

13415491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13415491 - 2³ = 13415483 is a prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (13415411) 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, 6707745 + 6707746.

It is an arithmetic number, because the mean of its divisors is an integer number (6707746).

Almost surely, 2^13415491 is an apocalyptic number.

13415491 is a deficient number, since it is larger than the sum of its proper divisors (1).

13415491 is an equidigital number, since it uses as much as digits as its factorization.

13415491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 13415491 is about 3662.7163417333. The cubic root of 13415491 is about 237.6122667751.

It can be divided in two parts, 134 and 15491, that added together give a 6-th power (15625 = 5⁶).

The spelling of 13415491 in words is "thirteen million, four hundred fifteen thousand, four hundred ninety-one".