3138974 has 4 divisors (see below), whose sum is σ = 4708464. Its totient is φ = 1569486.

The previous prime is 3138953. The next prime is 3138991. The reversal of 3138974 is 4798313.

It is a semiprime because it is the product of two primes.

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, 784742 + ... + 784745.

It is an arithmetic number, because the mean of its divisors is an integer number (1177116).

Almost surely, 2^3138974 is an apocalyptic number.

3138974 is a deficient number, since it is larger than the sum of its proper divisors (1569490).

3138974 is a wasteful number, since it uses less digits than its factorization.

3138974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569489.

The product of its digits is 18144, while the sum is 35.

The square root of 3138974 is about 1771.7149883658. The cubic root of 3138974 is about 146.4184840846.

The spelling of 3138974 in words is "three million, one hundred thirty-eight thousand, nine hundred seventy-four".