13415287 has 2 divisors, whose sum is σ = 13415288. Its totient is φ = 13415286.

The previous prime is 13415251. The next prime is 13415291. The reversal of 13415287 is 78251431.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13415287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13415887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6707643 + 6707644.

It is an arithmetic number, because the mean of its divisors is an integer number (6707644).

Almost surely, 2^13415287 is an apocalyptic number.

13415287 is a deficient number, since it is larger than the sum of its proper divisors (1).

13415287 is an equidigital number, since it uses as much as digits as its factorization.

13415287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 31.

The square root of 13415287 is about 3662.6884934430. The cubic root of 13415287 is about 237.6110623678.

The spelling of 13415287 in words is "thirteen million, four hundred fifteen thousand, two hundred eighty-seven".