13061868 has 12 divisors (see below), whose sum is σ = 30477720. Its totient is φ = 4353952.

The previous prime is 13061857. The next prime is 13061891. The reversal of 13061868 is 86816031.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×13061868² = 341224791298848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 544233 + ... + 544256.

It is an arithmetic number, because the mean of its divisors is an integer number (2539810).

Almost surely, 2^13061868 is an apocalyptic number.

It is an amenable number.

13061868 is an abundant number, since it is smaller than the sum of its proper divisors (17415852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13061868 is a wasteful number, since it uses less digits than its factorization.

13061868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088496 (or 1088494 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 13061868 is about 3614.1206399344. The cubic root of 13061868 is about 235.5058846984.

Adding to 13061868 its reverse (86816031), we get a palindrome (99877899).

The spelling of 13061868 in words is "thirteen million, sixty-one thousand, eight hundred sixty-eight".