743031313 has 2 divisors, whose sum is σ = 743031314. Its totient is φ = 743031312.

The previous prime is 743031283. The next prime is 743031329. The reversal of 743031313 is 313130347.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 611424529 + 131606784 = 24727^2 + 11472^2 .

It is a cyclic number.

It is not a de Polignac number, because 743031313 - 2¹³ = 743023121 is a prime.

It is not a weakly prime, because it can be changed into another prime (743031383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371515656 + 371515657.

It is an arithmetic number, because the mean of its divisors is an integer number (371515657).

Almost surely, 2^743031313 is an apocalyptic number.

It is an amenable number.

743031313 is a deficient number, since it is larger than the sum of its proper divisors (1).

743031313 is an equidigital number, since it uses as much as digits as its factorization.

743031313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 743031313 is about 27258.6007161043. The cubic root of 743031313 is about 905.7375479793.

The spelling of 743031313 in words is "seven hundred forty-three million, thirty-one thousand, three hundred thirteen".