2139313 has 4 divisors (see below), whose sum is σ = 2333808. Its totient is φ = 1944820.

The previous prime is 2139311. The next prime is 2139323. The reversal of 2139313 is 3139312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2139313 - 2¹ = 2139311 is a prime.

It is a super-2 number, since 2×2139313² = 9153320223938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2139311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97231 + ... + 97252.

It is an arithmetic number, because the mean of its divisors is an integer number (583452).

2^2139313 is an apocalyptic number.

It is an amenable number.

2139313 is a deficient number, since it is larger than the sum of its proper divisors (194495).

2139313 is a wasteful number, since it uses less digits than its factorization.

2139313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194494.

The product of its digits is 486, while the sum is 22.

The square root of 2139313 is about 1462.6390532185. The cubic root of 2139313 is about 128.8520829254.

Subtracting 2139313 from its reverse (3139312), we obtain a palindrome (999999).

The spelling of 2139313 in words is "two million, one hundred thirty-nine thousand, three hundred thirteen".