313921183 has 2 divisors, whose sum is σ = 313921184. Its totient is φ = 313921182.

The previous prime is 313921171. The next prime is 313921219. The reversal of 313921183 is 381129313.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313921183 is a prime.

It is a super-2 number, since 2×313921183² = 197093018272238978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313924183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156960591 + 156960592.

It is an arithmetic number, because the mean of its divisors is an integer number (156960592).

Almost surely, 2^313921183 is an apocalyptic number.

313921183 is a deficient number, since it is larger than the sum of its proper divisors (1).

313921183 is an equidigital number, since it uses as much as digits as its factorization.

313921183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 31.

The square root of 313921183 is about 17717.8210567778. The cubic root of 313921183 is about 679.6315643964.

The spelling of 313921183 in words is "three hundred thirteen million, nine hundred twenty-one thousand, one hundred eighty-three".