3158791 has 2 divisors, whose sum is σ = 3158792. Its totient is φ = 3158790.

The previous prime is 3158761. The next prime is 3158819. The reversal of 3158791 is 1978513.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3158791 - 2⁵ = 3158759 is a prime.

3158791 is a lucky number.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3158761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1579395 + 1579396.

It is an arithmetic number, because the mean of its divisors is an integer number (1579396).

Almost surely, 2^3158791 is an apocalyptic number.

3158791 is a deficient number, since it is larger than the sum of its proper divisors (1).

3158791 is an equidigital number, since it uses as much as digits as its factorization.

3158791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 34.

The square root of 3158791 is about 1777.2987931127. The cubic root of 3158791 is about 146.7259614473.

The spelling of 3158791 in words is "three million, one hundred fifty-eight thousand, seven hundred ninety-one".