316620149 has 2 divisors, whose sum is σ = 316620150. Its totient is φ = 316620148.

The previous prime is 316620133. The next prime is 316620151. The reversal of 316620149 is 941026613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 308880625 + 7739524 = 17575^2 + 2782^2 .

It is a cyclic number.

It is not a de Polignac number, because 316620149 - 2⁴ = 316620133 is a prime.

Together with 316620151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316620179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158310074 + 158310075.

It is an arithmetic number, because the mean of its divisors is an integer number (158310075).

Almost surely, 2^316620149 is an apocalyptic number.

It is an amenable number.

316620149 is a deficient number, since it is larger than the sum of its proper divisors (1).

316620149 is an equidigital number, since it uses as much as digits as its factorization.

316620149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 316620149 is about 17793.8233384509. The cubic root of 316620149 is about 681.5737404254.

The spelling of 316620149 in words is "three hundred sixteen million, six hundred twenty thousand, one hundred forty-nine".