3138349 has 4 divisors (see below), whose sum is σ = 3166236. Its totient is φ = 3110464.

The previous prime is 3138337. The next prime is 3138361. The reversal of 3138349 is 9438313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9438313 = 719 ⋅13127.

It is an interprime number because it is at equal distance from previous prime (3138337) and next prime (3138361).

It can be written as a sum of positive squares in 2 ways, for example, as 797449 + 2340900 = 893^2 + 1530^2 .

It is a cyclic number.

It is not a de Polignac number, because 3138349 - 2⁷ = 3138221 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 3138349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138329) 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, 13774 + ... + 13999.

It is an arithmetic number, because the mean of its divisors is an integer number (791559).

Almost surely, 2^3138349 is an apocalyptic number.

It is an amenable number.

3138349 is a deficient number, since it is larger than the sum of its proper divisors (27887).

3138349 is a wasteful number, since it uses less digits than its factorization.

3138349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27886.

The product of its digits is 7776, while the sum is 31.

The square root of 3138349 is about 1771.5385968135. The cubic root of 3138349 is about 146.4087656621.

The spelling of 3138349 in words is "three million, one hundred thirty-eight thousand, three hundred forty-nine".