740513 has 2 divisors, whose sum is σ = 740514. Its totient is φ = 740512.

The previous prime is 740483. The next prime is 740521. The reversal of 740513 is 315047.

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., 717409 + 23104 = 847^2 + 152^2 .

It is an emirp because it is prime and its reverse (315047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 740513 - 2¹⁶ = 674977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 740513.

It is not a weakly prime, because it can be changed into another prime (740533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370256 + 370257.

It is an arithmetic number, because the mean of its divisors is an integer number (370257).

2⁷⁴⁰⁵¹³ is an apocalyptic number.

It is an amenable number.

740513 is a deficient number, since it is larger than the sum of its proper divisors (1).

740513 is an equidigital number, since it uses as much as digits as its factorization.

740513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 740513 is about 860.5306502386. The cubic root of 740513 is about 90.4713135172.

The spelling of 740513 in words is "seven hundred forty thousand, five hundred thirteen".