2156902 has 8 divisors (see below), whose sum is σ = 3529512. Its totient is φ = 980400.

The previous prime is 2156897. The next prime is 2156939. The reversal of 2156902 is 2096512.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 48999 + ... + 49042.

It is an arithmetic number, because the mean of its divisors is an integer number (441189).

2^2156902 is an apocalyptic number.

2156902 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2156902 is a deficient number, since it is larger than the sum of its proper divisors (1372610).

2156902 is a wasteful number, since it uses less digits than its factorization.

2156902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98054.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 2156902 is about 1468.6395064821. The cubic root of 2156902 is about 129.2042514744.

It can be divided in two parts, 215 and 6902, that added together give a palindrome (7117).

The spelling of 2156902 in words is "two million, one hundred fifty-six thousand, nine hundred two".