3138172 has 6 divisors (see below), whose sum is σ = 5491808. Its totient is φ = 1569084.

The previous prime is 3138167. The next prime is 3138193. The reversal of 3138172 is 2718313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392268 + ... + 392275.

Almost surely, 2^3138172 is an apocalyptic number.

It is an amenable number.

3138172 is a deficient number, since it is larger than the sum of its proper divisors (2353636).

3138172 is a wasteful number, since it uses less digits than its factorization.

3138172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784547 (or 784545 counting only the distinct ones).

The product of its digits is 1008, while the sum is 25.

The square root of 3138172 is about 1771.4886395346. The cubic root of 3138172 is about 146.4060131704.

The spelling of 3138172 in words is "three million, one hundred thirty-eight thousand, one hundred seventy-two".