310031149 has 2 divisors, whose sum is σ = 310031150. Its totient is φ = 310031148.

The previous prime is 310031143. The next prime is 310031153. The reversal of 310031149 is 941130013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 281065225 + 28965924 = 16765^2 + 5382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-310031149 is a prime.

It is a super-2 number, since 2×310031149² = 192238626700520402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (310031143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155015574 + 155015575.

It is an arithmetic number, because the mean of its divisors is an integer number (155015575).

Almost surely, 2^310031149 is an apocalyptic number.

It is an amenable number.

310031149 is a deficient number, since it is larger than the sum of its proper divisors (1).

310031149 is an equidigital number, since it uses as much as digits as its factorization.

310031149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 310031149 is about 17607.7014115983. The cubic root of 310031149 is about 676.8126125483.

The spelling of 310031149 in words is "three hundred ten million, thirty-one thousand, one hundred forty-nine".