13451663 has 2 divisors, whose sum is σ = 13451664. Its totient is φ = 13451662.

The previous prime is 13451653. The next prime is 13451693. The reversal of 13451663 is 36615431.

It is a happy number.

13451663 is digitally balanced in base 2, 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 13451663 - 2¹⁰ = 13450639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13451653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6725831 + 6725832.

It is an arithmetic number, because the mean of its divisors is an integer number (6725832).

Almost surely, 2^13451663 is an apocalyptic number.

13451663 is a deficient number, since it is larger than the sum of its proper divisors (1).

13451663 is an equidigital number, since it uses as much as digits as its factorization.

13451663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 29.

The square root of 13451663 is about 3667.6508830585. The cubic root of 13451663 is about 237.8256319981.

The spelling of 13451663 in words is "thirteen million, four hundred fifty-one thousand, six hundred sixty-three".