316280149 has 2 divisors, whose sum is σ = 316280150. Its totient is φ = 316280148.

The previous prime is 316280141. The next prime is 316280201. The reversal of 316280149 is 941082613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 269944900 + 46335249 = 16430^2 + 6807^2 .

It is an emirp because it is prime and its reverse (941082613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 316280149 - 2³ = 316280141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316280141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158140074 + 158140075.

It is an arithmetic number, because the mean of its divisors is an integer number (158140075).

Almost surely, 2^316280149 is an apocalyptic number.

It is an amenable number.

316280149 is a deficient number, since it is larger than the sum of its proper divisors (1).

316280149 is an equidigital number, since it uses as much as digits as its factorization.

316280149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 316280149 is about 17784.2668952082. The cubic root of 316280149 is about 681.3296855530.

The spelling of 316280149 in words is "three hundred sixteen million, two hundred eighty thousand, one hundred forty-nine".