2139892 has 12 divisors (see below), whose sum is σ = 3965220. Its totient is φ = 1006976.

The previous prime is 2139877. The next prime is 2139911. The reversal of 2139892 is 2989312.

2139892 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1354896 + 784996 = 1164^2 + 886^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15667 + ... + 15802.

It is an arithmetic number, because the mean of its divisors is an integer number (330435).

2^2139892 is an apocalyptic number.

It is an amenable number.

2139892 is a deficient number, since it is larger than the sum of its proper divisors (1825328).

2139892 is a wasteful number, since it uses less digits than its factorization.

2139892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31490 (or 31488 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 2139892 is about 1462.8369697270. The cubic root of 2139892 is about 128.8637063806.

The spelling of 2139892 in words is "two million, one hundred thirty-nine thousand, eight hundred ninety-two".