316023661 has 2 divisors, whose sum is σ = 316023662. Its totient is φ = 316023660.

The previous prime is 316023649. The next prime is 316023679. The reversal of 316023661 is 166320613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 282441636 + 33582025 = 16806^2 + 5795^2 .

It is a cyclic number.

It is not a de Polignac number, because 316023661 - 2¹⁵ = 315990893 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 (316023691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158011830 + 158011831.

It is an arithmetic number, because the mean of its divisors is an integer number (158011831).

Almost surely, 2^316023661 is an apocalyptic number.

It is an amenable number.

316023661 is a deficient number, since it is larger than the sum of its proper divisors (1).

316023661 is an equidigital number, since it uses as much as digits as its factorization.

316023661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 316023661 is about 17777.0543397943. The cubic root of 316023661 is about 681.1454605350.

The spelling of 316023661 in words is "three hundred sixteen million, twenty-three thousand, six hundred sixty-one".