2139349 has 4 divisors (see below), whose sum is σ = 2154880. Its totient is φ = 2123820.

The previous prime is 2139337. The next prime is 2139353. The reversal of 2139349 is 9439312.

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 2139349 - 2¹¹ = 2137301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2139349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2139149) 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, 7557 + ... + 7834.

It is an arithmetic number, because the mean of its divisors is an integer number (538720).

2^2139349 is an apocalyptic number.

It is an amenable number.

2139349 is a deficient number, since it is larger than the sum of its proper divisors (15531).

2139349 is a wasteful number, since it uses less digits than its factorization.

2139349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15530.

The product of its digits is 5832, while the sum is 31.

The square root of 2139349 is about 1462.6513596890. The cubic root of 2139349 is about 128.8528056884.

The spelling of 2139349 in words is "two million, one hundred thirty-nine thousand, three hundred forty-nine".