3181379 has 4 divisors (see below), whose sum is σ = 3348840. Its totient is φ = 3013920.

The previous prime is 3181369. The next prime is 3181391. The reversal of 3181379 is 9731813.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3181379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3181349) 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, 83702 + ... + 83739.

It is an arithmetic number, because the mean of its divisors is an integer number (837210).

Almost surely, 2^3181379 is an apocalyptic number.

3181379 is a deficient number, since it is larger than the sum of its proper divisors (167461).

3181379 is a wasteful number, since it uses less digits than its factorization.

3181379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167460.

The product of its digits is 4536, while the sum is 32.

The square root of 3181379 is about 1783.6420605043. The cubic root of 3181379 is about 147.0748689222.

The spelling of 3181379 in words is "three million, one hundred eighty-one thousand, three hundred seventy-nine".