316643131 has 16 divisors (see below), whose sum is σ = 370769920. Its totient is φ = 264811680.

The previous prime is 316643101. The next prime is 316643137. The reversal of 316643131 is 131346613.

It is a de Polignac number, because none of the positive numbers 2^k-316643131 is a prime.

It is a super-2 number, since 2×316643131² = 200525744818966322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 316643131.

It is not an unprimeable number, because it can be changed into a prime (316643137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51310 + ... + 57148.

It is an arithmetic number, because the mean of its divisors is an integer number (23173120).

Almost surely, 2^316643131 is an apocalyptic number.

316643131 is a deficient number, since it is larger than the sum of its proper divisors (54126789).

316643131 is a wasteful number, since it uses less digits than its factorization.

316643131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6034.

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

The square root of 316643131 is about 17794.4691126204. The cubic root of 316643131 is about 681.5902307939.

Adding to 316643131 its reverse (131346613), we get a palindrome (447989744).

The spelling of 316643131 in words is "three hundred sixteen million, six hundred forty-three thousand, one hundred thirty-one".