2120859 has 12 divisors (see below), whose sum is σ = 3299296. Its totient is φ = 1305072.

The previous prime is 2120851. The next prime is 2120863. The reversal of 2120859 is 9580212.

It is not a de Polignac number, because 2120859 - 2³ = 2120851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8947 + ... + 9180.

2^2120859 is an apocalyptic number.

2120859 is a deficient number, since it is larger than the sum of its proper divisors (1178437).

2120859 is a wasteful number, since it uses less digits than its factorization.

2120859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18146 (or 18143 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 2120859 is about 1456.3169297924. The cubic root of 2120859 is about 128.4805140352.

The spelling of 2120859 in words is "two million, one hundred twenty thousand, eight hundred fifty-nine".