2137907439 has 24 divisors (see below), whose sum is σ = 3209012352. Its totient is φ = 1422356760.

The previous prime is 2137907413. The next prime is 2137907441. The reversal of 2137907439 is 9347097312.

It is not a de Polignac number, because 2137907439 - 2¹⁵ = 2137874671 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2137907394 and 2137907403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137907479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113484 + ... + 130974.

It is an arithmetic number, because the mean of its divisors is an integer number (133708848).

Almost surely, 2^2137907439 is an apocalyptic number.

2137907439 is a deficient number, since it is larger than the sum of its proper divisors (1071104913).

2137907439 is an equidigital number, since it uses as much as digits as its factorization.

2137907439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18009 (or 17997 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 2137907439 is about 46237.5111678819. The cubic root of 2137907439 is about 1288.2385748716.

The spelling of 2137907439 in words is "two billion, one hundred thirty-seven million, nine hundred seven thousand, four hundred thirty-nine".