316649741 has 2 divisors, whose sum is σ = 316649742. Its totient is φ = 316649740.

The previous prime is 316649713. The next prime is 316649743. The reversal of 316649741 is 147946613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314920516 + 1729225 = 17746^2 + 1315^2 .

It is a cyclic number.

It is not a de Polignac number, because 316649741 - 2²⁶ = 249540877 is a prime.

Together with 316649743, 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 (316649743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158324870 + 158324871.

It is an arithmetic number, because the mean of its divisors is an integer number (158324871).

Almost surely, 2^316649741 is an apocalyptic number.

It is an amenable number.

316649741 is a deficient number, since it is larger than the sum of its proper divisors (1).

316649741 is an equidigital number, since it uses as much as digits as its factorization.

316649741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 41.

The square root of 316649741 is about 17794.6548435197. The cubic root of 316649741 is about 681.5949735464.

The spelling of 316649741 in words is "three hundred sixteen million, six hundred forty-nine thousand, seven hundred forty-one".