513535723 has 2 divisors, whose sum is σ = 513535724. Its totient is φ = 513535722.

The previous prime is 513535721. The next prime is 513535727. The reversal of 513535723 is 327535315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 513535723 - 2¹ = 513535721 is a prime.

Together with 513535721, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (513535721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256767861 + 256767862.

It is an arithmetic number, because the mean of its divisors is an integer number (256767862).

Almost surely, 2^513535723 is an apocalyptic number.

513535723 is a deficient number, since it is larger than the sum of its proper divisors (1).

513535723 is an equidigital number, since it uses as much as digits as its factorization.

513535723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47250, while the sum is 34.

The square root of 513535723 is about 22661.3265940015. The cubic root of 513535723 is about 800.7990573476.

The spelling of 513535723 in words is "five hundred thirteen million, five hundred thirty-five thousand, seven hundred twenty-three".