2137815 has 12 divisors (see below), whose sum is σ = 3705624. Its totient is φ = 1140144.

The previous prime is 2137813. The next prime is 2137829. The reversal of 2137815 is 5187312.

It is not a de Polignac number, because 2137815 - 2¹ = 2137813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137813) 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, 23709 + ... + 23798.

It is an arithmetic number, because the mean of its divisors is an integer number (308802).

2^2137815 is an apocalyptic number.

2137815 is a deficient number, since it is larger than the sum of its proper divisors (1567809).

2137815 is a wasteful number, since it uses less digits than its factorization.

2137815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47518 (or 47515 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 2137815 is about 1462.1268754797. The cubic root of 2137815 is about 128.8220007619.

The spelling of 2137815 in words is "two million, one hundred thirty-seven thousand, eight hundred fifteen".