2155474156 has 36 divisors (see below), whose sum is σ = 4176562824. Its totient is φ = 972579520.

The previous prime is 2155474103. The next prime is 2155474159. The reversal of 2155474156 is 6514745512.

2155474156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2155474159) 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, 50055 + ... + 82561.

It is an arithmetic number, because the mean of its divisors is an integer number (116015634).

Almost surely, 2^2155474156 is an apocalyptic number.

It is an amenable number.

2155474156 is a deficient number, since it is larger than the sum of its proper divisors (2021088668).

2155474156 is a wasteful number, since it uses less digits than its factorization.

2155474156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32670 (or 32657 counting only the distinct ones).

The product of its digits is 168000, while the sum is 40.

The square root of 2155474156 is about 46427.0842935457. The cubic root of 2155474156 is about 1291.7573461102.

The spelling of 2155474156 in words is "two billion, one hundred fifty-five million, four hundred seventy-four thousand, one hundred fifty-six".