2137868 has 12 divisors (see below), whose sum is σ = 3778320. Its totient is φ = 1058352.

The previous prime is 2137859. The next prime is 2137871. The reversal of 2137868 is 8687312.

2137868 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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, 2183 + ... + 3006.

It is an arithmetic number, because the mean of its divisors is an integer number (314860).

2^2137868 is an apocalyptic number.

It is an amenable number.

2137868 is a deficient number, since it is larger than the sum of its proper divisors (1640452).

2137868 is a wasteful number, since it uses less digits than its factorization.

2137868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5296 (or 5294 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 2137868 is about 1462.1449996495. The cubic root of 2137868 is about 128.8230653239.

The spelling of 2137868 in words is "two million, one hundred thirty-seven thousand, eight hundred sixty-eight".