316455397 has 2 divisors, whose sum is σ = 316455398. Its totient is φ = 316455396.

The previous prime is 316455379. The next prime is 316455427. The reversal of 316455397 is 793554613.

Together with previous prime (316455379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181872196 + 134583201 = 13486^2 + 11601^2 .

It is a cyclic number.

It is not a de Polignac number, because 316455397 - 2²⁷ = 182237669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316455497) 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, 158227698 + 158227699.

It is an arithmetic number, because the mean of its divisors is an integer number (158227699).

Almost surely, 2^316455397 is an apocalyptic number.

It is an amenable number.

316455397 is a deficient number, since it is larger than the sum of its proper divisors (1).

316455397 is an equidigital number, since it uses as much as digits as its factorization.

316455397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 43.

The square root of 316455397 is about 17789.1932644513. The cubic root of 316455397 is about 681.4555018784.

The spelling of 316455397 in words is "three hundred sixteen million, four hundred fifty-five thousand, three hundred ninety-seven".