2120902 has 16 divisors (see below), whose sum is σ = 3659040. Its totient is φ = 903168.

The previous prime is 2120891. The next prime is 2120917. The reversal of 2120902 is 2090212.

It is a happy number.

It is a congruent 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, 2374 + ... + 3142.

It is an arithmetic number, because the mean of its divisors is an integer number (228690).

2^2120902 is an apocalyptic number.

2120902 is a deficient number, since it is larger than the sum of its proper divisors (1538138).

2120902 is a wasteful number, since it uses less digits than its factorization.

2120902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2120902 is about 1456.3316929876. The cubic root of 2120902 is about 128.4813823350.

The spelling of 2120902 in words is "two million, one hundred twenty thousand, nine hundred two".