3138941 has 8 divisors (see below), whose sum is σ = 3419640. Its totient is φ = 2863872.

The previous prime is 3138929. The next prime is 3138943. The reversal of 3138941 is 1498313.

It can be written as a sum of positive squares in 4 ways, for example, as 403225 + 2735716 = 635^2 + 1654^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3138941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200 + ... + 2513.

It is an arithmetic number, because the mean of its divisors is an integer number (427455).

Almost surely, 2^3138941 is an apocalyptic number.

It is an amenable number.

3138941 is a deficient number, since it is larger than the sum of its proper divisors (280699).

3138941 is a wasteful number, since it uses less digits than its factorization.

3138941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2815.

The product of its digits is 2592, while the sum is 29.

The square root of 3138941 is about 1771.7056753310. The cubic root of 3138941 is about 146.4179709841.

The spelling of 3138941 in words is "three million, one hundred thirty-eight thousand, nine hundred forty-one".