313124549 has 2 divisors, whose sum is σ = 313124550. Its totient is φ = 313124548.

The previous prime is 313124527. The next prime is 313124557. The reversal of 313124549 is 945421313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 275792449 + 37332100 = 16607^2 + 6110^2 .

It is an emirp because it is prime and its reverse (945421313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313124549 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313144549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156562274 + 156562275.

It is an arithmetic number, because the mean of its divisors is an integer number (156562275).

Almost surely, 2^313124549 is an apocalyptic number.

It is an amenable number.

313124549 is a deficient number, since it is larger than the sum of its proper divisors (1).

313124549 is an equidigital number, since it uses as much as digits as its factorization.

313124549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 313124549 is about 17695.3256257126. The cubic root of 313124549 is about 679.0561797980.

The spelling of 313124549 in words is "three hundred thirteen million, one hundred twenty-four thousand, five hundred forty-nine".