3091323149 has 2 divisors, whose sum is σ = 3091323150. Its totient is φ = 3091323148.

The previous prime is 3091323143. The next prime is 3091323203. The reversal of 3091323149 is 9413231903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3067165924 + 24157225 = 55382^2 + 4915^2 .

It is a cyclic number.

It is not a de Polignac number, because 3091323149 - 2⁴ = 3091323133 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3091323143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1545661574 + 1545661575.

It is an arithmetic number, because the mean of its divisors is an integer number (1545661575).

Almost surely, 2^3091323149 is an apocalyptic number.

It is an amenable number.

3091323149 is a deficient number, since it is larger than the sum of its proper divisors (1).

3091323149 is an equidigital number, since it uses as much as digits as its factorization.

3091323149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 3091323149 is about 55599.6686051275. The cubic root of 3091323149 is about 1456.7380652328.

The spelling of 3091323149 in words is "three billion, ninety-one million, three hundred twenty-three thousand, one hundred forty-nine".