913513 has 2 divisors, whose sum is σ = 913514. Its totient is φ = 913512.

The previous prime is 913487. The next prime is 913571. The reversal of 913513 is 315319.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 514089 + 399424 = 717^2 + 632^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-913513 is a prime.

913513 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (913573) 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, 456756 + 456757.

It is an arithmetic number, because the mean of its divisors is an integer number (456757).

2⁹¹³⁵¹³ is an apocalyptic number.

It is an amenable number.

913513 is a deficient number, since it is larger than the sum of its proper divisors (1).

913513 is an equidigital number, since it uses as much as digits as its factorization.

913513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 405, while the sum is 22.

The square root of 913513 is about 955.7787400858. The cubic root of 913513 is about 97.0297496166.

The spelling of 913513 in words is "nine hundred thirteen thousand, five hundred thirteen".