2155914 has 12 divisors (see below), whose sum is σ = 4671186. Its totient is φ = 718632.

The previous prime is 2155883. The next prime is 2155931. The reversal of 2155914 is 4195512.

It can be written as a sum of positive squares in only one way, i.e., 1404225 + 751689 = 1185^2 + 867^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59869 + ... + 59904.

2^2155914 is an apocalyptic number.

2155914 is an abundant number, since it is smaller than the sum of its proper divisors (2515272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2155914 is a wasteful number, since it uses less digits than its factorization.

2155914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119781 (or 119778 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 2155914 is about 1468.3031022238. The cubic root of 2155914 is about 129.1845205058.

The spelling of 2155914 in words is "two million, one hundred fifty-five thousand, nine hundred fourteen".