313447133 has 2 divisors, whose sum is σ = 313447134. Its totient is φ = 313447132.

The previous prime is 313447111. The next prime is 313447157. The reversal of 313447133 is 331744313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 249734809 + 63712324 = 15803^2 + 7982^2 .

It is a cyclic number.

It is not a de Polignac number, because 313447133 - 2²² = 309252829 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 313447096 and 313447105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313447103) 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, 156723566 + 156723567.

It is an arithmetic number, because the mean of its divisors is an integer number (156723567).

Almost surely, 2^313447133 is an apocalyptic number.

It is an amenable number.

313447133 is a deficient number, since it is larger than the sum of its proper divisors (1).

313447133 is an equidigital number, since it uses as much as digits as its factorization.

313447133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 29.

The square root of 313447133 is about 17704.4382288736. The cubic root of 313447133 is about 679.2892898911.

The spelling of 313447133 in words is "three hundred thirteen million, four hundred forty-seven thousand, one hundred thirty-three".