3157349 has 4 divisors (see below), whose sum is σ = 3400236. Its totient is φ = 2914464.

The previous prime is 3157339. The next prime is 3157367. The reversal of 3157349 is 9437513.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9437513 = 73 ⋅129281.

It can be written as a sum of positive squares in 2 ways, for example, as 368449 + 2788900 = 607^2 + 1670^2 .

It is a cyclic number.

It is not a de Polignac number, because 3157349 - 2²⁰ = 2108773 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3157309) 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, 121424 + ... + 121449.

It is an arithmetic number, because the mean of its divisors is an integer number (850059).

Almost surely, 2^3157349 is an apocalyptic number.

It is an amenable number.

3157349 is a deficient number, since it is larger than the sum of its proper divisors (242887).

3157349 is a wasteful number, since it uses less digits than its factorization.

3157349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242886.

The product of its digits is 11340, while the sum is 32.

The square root of 3157349 is about 1776.8930750048. The cubic root of 3157349 is about 146.7036310642.

The spelling of 3157349 in words is "three million, one hundred fifty-seven thousand, three hundred forty-nine".