313621199 has 2 divisors, whose sum is σ = 313621200. Its totient is φ = 313621198.

The previous prime is 313621183. The next prime is 313621211. The reversal of 313621199 is 991126313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313621199 - 2⁴ = 313621183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313621499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156810599 + 156810600.

It is an arithmetic number, because the mean of its divisors is an integer number (156810600).

Almost surely, 2^313621199 is an apocalyptic number.

313621199 is a deficient number, since it is larger than the sum of its proper divisors (1).

313621199 is an equidigital number, since it uses as much as digits as its factorization.

313621199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 35.

The square root of 313621199 is about 17709.3534325791. The cubic root of 313621199 is about 679.4150094317.

The spelling of 313621199 in words is "three hundred thirteen million, six hundred twenty-one thousand, one hundred ninety-nine".