2195156 has 12 divisors (see below), whose sum is σ = 3856692. Its totient is φ = 1093248.

The previous prime is 2195147. The next prime is 2195177. The reversal of 2195156 is 6515912.

It can be written as a sum of positive squares in 2 ways, for example, as 1020100 + 1175056 = 1010^2 + 1084^2 .

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, 236 + ... + 2108.

It is an arithmetic number, because the mean of its divisors is an integer number (321391).

2^2195156 is an apocalyptic number.

It is an amenable number.

2195156 is a deficient number, since it is larger than the sum of its proper divisors (1661536).

2195156 is a wasteful number, since it uses less digits than its factorization.

2195156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170 (or 2168 counting only the distinct ones).

The product of its digits is 2700, while the sum is 29.

The square root of 2195156 is about 1481.6058855175. The cubic root of 2195156 is about 129.9636190109.

The spelling of 2195156 in words is "two million, one hundred ninety-five thousand, one hundred fifty-six".