316661213 has 8 divisors (see below), whose sum is σ = 346934016. Its totient is φ = 286636000.

The previous prime is 316661197. The next prime is 316661251. The reversal of 316661213 is 312166613.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 316661213 - 2⁴ = 316661197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316691213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59213 + ... + 64338.

It is an arithmetic number, because the mean of its divisors is an integer number (43366752).

Almost surely, 2^316661213 is an apocalyptic number.

It is an amenable number.

316661213 is a deficient number, since it is larger than the sum of its proper divisors (30272803).

316661213 is a wasteful number, since it uses less digits than its factorization.

316661213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123795.

The product of its digits is 3888, while the sum is 29.

The square root of 316661213 is about 17794.9771845878. The cubic root of 316661213 is about 681.6032046844.

The spelling of 316661213 in words is "three hundred sixteen million, six hundred sixty-one thousand, two hundred thirteen".