3181213674 has 24 divisors (see below), whose sum is σ = 7192310112. Its totient is φ = 1014299880.

The previous prime is 3181213669. The next prime is 3181213687. The reversal of 3181213674 is 4763121813.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3841632 + ... + 3842459.

It is an arithmetic number, because the mean of its divisors is an integer number (299679588).

Almost surely, 2^3181213674 is an apocalyptic number.

3181213674 is an abundant number, since it is smaller than the sum of its proper divisors (4011096438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3181213674 is a wasteful number, since it uses less digits than its factorization.

3181213674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7684122 (or 7684119 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 3181213674 is about 56402.2488381447. The cubic root of 3181213674 is about 1470.7232120928.

The spelling of 3181213674 in words is "three billion, one hundred eighty-one million, two hundred thirteen thousand, six hundred seventy-four".