311325149 has 2 divisors, whose sum is σ = 311325150. Its totient is φ = 311325148.

The previous prime is 311325139. The next prime is 311325163. The reversal of 311325149 is 941523113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310393924 + 931225 = 17618^2 + 965^2 .

It is an emirp because it is prime and its reverse (941523113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 311325149 - 2²⁰ = 310276573 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311325139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155662574 + 155662575.

It is an arithmetic number, because the mean of its divisors is an integer number (155662575).

Almost surely, 2^311325149 is an apocalyptic number.

It is an amenable number.

311325149 is a deficient number, since it is larger than the sum of its proper divisors (1).

311325149 is an equidigital number, since it uses as much as digits as its factorization.

311325149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 29.

The square root of 311325149 is about 17644.4084344021. The cubic root of 311325149 is about 677.7529265386.

The spelling of 311325149 in words is "three hundred eleven million, three hundred twenty-five thousand, one hundred forty-nine".