316099081 has 4 divisors (see below), whose sum is σ = 318896532. Its totient is φ = 313301632.

The previous prime is 316099073. The next prime is 316099117. The reversal of 316099081 is 180990613.

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 141991056 + 174108025 = 11916^2 + 13195^2 .

It is a cyclic number.

It is not a de Polignac number, because 316099081 - 2³ = 316099073 is a prime.

It is a super-2 number, since 2×316099081² = 199837258018089122, 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 316099081.

It is not an unprimeable number, because it can be changed into a prime (316099031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1398556 + ... + 1398781.

It is an arithmetic number, because the mean of its divisors is an integer number (79724133).

Almost surely, 2^316099081 is an apocalyptic number.

It is an amenable number.

316099081 is a deficient number, since it is larger than the sum of its proper divisors (2797451).

316099081 is a wasteful number, since it uses less digits than its factorization.

316099081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2797450.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 316099081 is about 17779.1754870691. The cubic root of 316099081 is about 681.1996420314.

The spelling of 316099081 in words is "three hundred sixteen million, ninety-nine thousand, eighty-one".