316101493 has 2 divisors, whose sum is σ = 316101494. Its totient is φ = 316101492.

The previous prime is 316101481. The next prime is 316101503. The reversal of 316101493 is 394101613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210772324 + 105329169 = 14518^2 + 10263^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316101493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316101403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158050746 + 158050747.

It is an arithmetic number, because the mean of its divisors is an integer number (158050747).

Almost surely, 2^316101493 is an apocalyptic number.

It is an amenable number.

316101493 is a deficient number, since it is larger than the sum of its proper divisors (1).

316101493 is an equidigital number, since it uses as much as digits as its factorization.

316101493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 316101493 is about 17779.2433191067. The cubic root of 316101493 is about 681.2013746625.

The spelling of 316101493 in words is "three hundred sixteen million, one hundred one thousand, four hundred ninety-three".