2115156 has 24 divisors (see below), whose sum is σ = 5195680. Its totient is φ = 667872.

The previous prime is 2115133. The next prime is 2115181. The reversal of 2115156 is 6515112.

2115156 = 34² + 35² + ... + 185².

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4411 + ... + 4866.

2^2115156 is an apocalyptic number.

It is an amenable number.

2115156 is an abundant number, since it is smaller than the sum of its proper divisors (3080524).

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

2115156 is a wasteful number, since it uses less digits than its factorization.

2115156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9303 (or 9301 counting only the distinct ones).

The product of its digits is 300, while the sum is 21.

The square root of 2115156 is about 1454.3575901407. The cubic root of 2115156 is about 128.3652490850.

The spelling of 2115156 in words is "two million, one hundred fifteen thousand, one hundred fifty-six".