316502645 has 4 divisors (see below), whose sum is σ = 379803180. Its totient is φ = 253202112.

The previous prime is 316502639. The next prime is 316502647. The reversal of 316502645 is 546205613.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 138627076 + 177875569 = 11774^2 + 13337^2 .

It is a cyclic number.

It is not a de Polignac number, because 316502645 - 2⁴ = 316502629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316502647) 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 in 3 ways as a sum of consecutive naturals, for example, 31650260 + ... + 31650269.

It is an arithmetic number, because the mean of its divisors is an integer number (94950795).

Almost surely, 2^316502645 is an apocalyptic number.

It is an amenable number.

316502645 is a deficient number, since it is larger than the sum of its proper divisors (63300535).

316502645 is an equidigital number, since it uses as much as digits as its factorization.

316502645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63300534.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 316502645 is about 17790.5212121511. The cubic root of 316502645 is about 681.4894148274.

The spelling of 316502645 in words is "three hundred sixteen million, five hundred two thousand, six hundred forty-five".