316128461 has 16 divisors (see below), whose sum is σ = 349956288. Its totient is φ = 283180800.

The previous prime is 316128457. The next prime is 316128469. The reversal of 316128461 is 164821613.

It is a cyclic number.

It is not a de Polignac number, because 316128461 - 2² = 316128457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316128469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244226 + ... + 245516.

It is an arithmetic number, because the mean of its divisors is an integer number (21872268).

Almost surely, 2^316128461 is an apocalyptic number.

It is an amenable number.

316128461 is a deficient number, since it is larger than the sum of its proper divisors (33827827).

316128461 is a wasteful number, since it uses less digits than its factorization.

316128461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612.

The product of its digits is 6912, while the sum is 32.

The square root of 316128461 is about 17780.0017154105. The cubic root of 316128461 is about 681.2207462005.

The spelling of 316128461 in words is "three hundred sixteen million, one hundred twenty-eight thousand, four hundred sixty-one".