2137999 has 2 divisors, whose sum is σ = 2138000. Its totient is φ = 2137998.

The previous prime is 2137987. The next prime is 2138029. The reversal of 2137999 is 9997312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2137999 - 2⁷ = 2137871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2137969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068999 + 1069000.

It is an arithmetic number, because the mean of its divisors is an integer number (1069000).

2^2137999 is an apocalyptic number.

2137999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2137999 is an equidigital number, since it uses as much as digits as its factorization.

2137999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30618, while the sum is 40.

The square root of 2137999 is about 1462.1897961619. The cubic root of 2137999 is about 128.8256965242.

It can be divided in two parts, 2137 and 999, that added together give a square (3136 = 56²).

The spelling of 2137999 in words is "two million, one hundred thirty-seven thousand, nine hundred ninety-nine".