3151979 has 2 divisors, whose sum is σ = 3151980. Its totient is φ = 3151978.

The previous prime is 3151927. The next prime is 3151999. The reversal of 3151979 is 9791513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3151979 - 2¹² = 3147883 is a prime.

It is a super-5 number, since 5×3151979⁵ (a number of 34 digits) contains 55555 as substring.

It is not a weakly prime, because it can be changed into another prime (3151999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1575989 + 1575990.

It is an arithmetic number, because the mean of its divisors is an integer number (1575990).

Almost surely, 2^3151979 is an apocalyptic number.

3151979 is a deficient number, since it is larger than the sum of its proper divisors (1).

3151979 is an equidigital number, since it uses as much as digits as its factorization.

3151979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8505, while the sum is 35.

The square root of 3151979 is about 1775.3813674814. The cubic root of 3151979 is about 146.6204129859.

The spelling of 3151979 in words is "three million, one hundred fifty-one thousand, nine hundred seventy-nine".