313124197 has 2 divisors, whose sum is σ = 313124198. Its totient is φ = 313124196.

The previous prime is 313124183. The next prime is 313124209. The reversal of 313124197 is 791421313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204318436 + 108805761 = 14294^2 + 10431^2 .

It is an emirp because it is prime and its reverse (791421313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313124197 - 2¹⁹ = 312599909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313124117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156562098 + 156562099.

It is an arithmetic number, because the mean of its divisors is an integer number (156562099).

Almost surely, 2^313124197 is an apocalyptic number.

It is an amenable number.

313124197 is a deficient number, since it is larger than the sum of its proper divisors (1).

313124197 is an equidigital number, since it uses as much as digits as its factorization.

313124197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 31.

The square root of 313124197 is about 17695.3156795803. The cubic root of 313124197 is about 679.0559253435.

The spelling of 313124197 in words is "three hundred thirteen million, one hundred twenty-four thousand, one hundred ninety-seven".