2115057 has 32 divisors (see below), whose sum is σ = 3502080. Its totient is φ = 1108800.

The previous prime is 2115049. The next prime is 2115059. The reversal of 2115057 is 7505112.

It is not a de Polignac number, because 2115057 - 2³ = 2115049 is a prime.

It is a super-2 number, since 2×2115057² = 8946932226498, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13932 + ... + 14082.

It is an arithmetic number, because the mean of its divisors is an integer number (109440).

2^2115057 is an apocalyptic number.

It is an amenable number.

2115057 is a deficient number, since it is larger than the sum of its proper divisors (1387023).

2115057 is a wasteful number, since it uses less digits than its factorization.

2115057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 2115057 is about 1454.3235540965. The cubic root of 2115057 is about 128.3632463394.

The spelling of 2115057 in words is "two million, one hundred fifteen thousand, fifty-seven".