316434649 has 2 divisors, whose sum is σ = 316434650. Its totient is φ = 316434648.

The previous prime is 316434593. The next prime is 316434673. The reversal of 316434649 is 946434613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 315311049 + 1123600 = 17757^2 + 1060^2 .

It is a cyclic number.

It is not a de Polignac number, because 316434649 - 2²³ = 308046041 is a prime.

It is not a weakly prime, because it can be changed into another prime (316434749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158217324 + 158217325.

It is an arithmetic number, because the mean of its divisors is an integer number (158217325).

Almost surely, 2^316434649 is an apocalyptic number.

It is an amenable number.

316434649 is a deficient number, since it is larger than the sum of its proper divisors (1).

316434649 is an equidigital number, since it uses as much as digits as its factorization.

316434649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 40.

The square root of 316434649 is about 17788.6100918537. The cubic root of 316434649 is about 681.4406086286.

The spelling of 316434649 in words is "three hundred sixteen million, four hundred thirty-four thousand, six hundred forty-nine".