316561316 has 6 divisors (see below), whose sum is σ = 553982310. Its totient is φ = 158280656.

The previous prime is 316561291. The next prime is 316561331. The reversal of 316561316 is 613165613.

It can be written as a sum of positive squares in only one way, i.e., 312936100 + 3625216 = 17690^2 + 1904^2 .

It is a super-2 number, since 2×316561316² = 200422133575303712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39570161 + ... + 39570168.

It is an arithmetic number, because the mean of its divisors is an integer number (92330385).

Almost surely, 2^316561316 is an apocalyptic number.

It is an amenable number.

316561316 is a deficient number, since it is larger than the sum of its proper divisors (237420994).

316561316 is a wasteful number, since it uses less digits than its factorization.

316561316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79140333 (or 79140331 counting only the distinct ones).

The product of its digits is 9720, while the sum is 32.

The square root of 316561316 is about 17792.1700756260. The cubic root of 316561316 is about 681.5315221060.

The spelling of 316561316 in words is "three hundred sixteen million, five hundred sixty-one thousand, three hundred sixteen".