740509313 has 2 divisors, whose sum is σ = 740509314. Its totient is φ = 740509312.

The previous prime is 740509277. The next prime is 740509327. The reversal of 740509313 is 313905047.

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., 489825424 + 250683889 = 22132^2 + 15833^2 .

It is a cyclic number.

It is not a de Polignac number, because 740509313 - 2²⁶ = 673400449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 740509313.

It is not a weakly prime, because it can be changed into another prime (740509213) 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, 370254656 + 370254657.

It is an arithmetic number, because the mean of its divisors is an integer number (370254657).

Almost surely, 2^740509313 is an apocalyptic number.

It is an amenable number.

740509313 is a deficient number, since it is larger than the sum of its proper divisors (1).

740509313 is an equidigital number, since it uses as much as digits as its factorization.

740509313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 740509313 is about 27212.3007663814. The cubic root of 740509313 is about 904.7116336529.

The spelling of 740509313 in words is "seven hundred forty million, five hundred nine thousand, three hundred thirteen".