13145668 has 24 divisors (see below), whose sum is σ = 23563904. Its totient is φ = 6415200.

The previous prime is 13145651. The next prime is 13145681. The reversal of 13145668 is 86654131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48373 + ... + 48643.

Almost surely, 2^13145668 is an apocalyptic number.

It is an amenable number.

13145668 is a deficient number, since it is larger than the sum of its proper divisors (10418236).

13145668 is a wasteful number, since it uses less digits than its factorization.

13145668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 521 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 13145668 is about 3625.6955194831. The cubic root of 13145668 is about 236.0084503342.

Adding to 13145668 its reverse (86654131), we get a palindrome (99799799).

The spelling of 13145668 in words is "thirteen million, one hundred forty-five thousand, six hundred sixty-eight".