2137605 has 16 divisors (see below), whose sum is σ = 3531264. Its totient is φ = 1103040.

The previous prime is 2137571. The next prime is 2137613. The reversal of 2137605 is 5067312.

It is not a de Polignac number, because 2137605 - 2²⁰ = 1089029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1834 + ... + 2763.

It is an arithmetic number, because the mean of its divisors is an integer number (220704).

2^2137605 is an apocalyptic number.

It is an amenable number.

2137605 is a deficient number, since it is larger than the sum of its proper divisors (1393659).

2137605 is a wasteful number, since it uses less digits than its factorization.

2137605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4636.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 2137605 is about 1462.0550605227. The cubic root of 2137605 is about 128.8177825132.

The spelling of 2137605 in words is "two million, one hundred thirty-seven thousand, six hundred five".