13140868 has 12 divisors (see below), whose sum is σ = 24765580. Its totient is φ = 6064992.

The previous prime is 13140859. The next prime is 13140887. The reversal of 13140868 is 86804131.

It can be written as a sum of positive squares in 2 ways, for example, as 3104644 + 10036224 = 1762^2 + 3168^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 15.

It is a congruent number.

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, 126303 + ... + 126406.

Almost surely, 2^13140868 is an apocalyptic number.

It is an amenable number.

13140868 is a deficient number, since it is larger than the sum of its proper divisors (11624712).

13140868 is a wasteful number, since it uses less digits than its factorization.

13140868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252726 (or 252724 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 13140868 is about 3625.0335170864. The cubic root of 13140868 is about 235.9797215172.

Adding to 13140868 its reverse (86804131), we get a palindrome (99944999).

The spelling of 13140868 in words is "thirteen million, one hundred forty thousand, eight hundred sixty-eight".