75317513 has 2 divisors, whose sum is σ = 75317514. Its totient is φ = 75317512.

The previous prime is 75317509. The next prime is 75317521. The reversal of 75317513 is 31571357.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71961289 + 3356224 = 8483^2 + 1832^2 .

It is a cyclic number.

It is not a de Polignac number, because 75317513 - 2² = 75317509 is a prime.

It is equal to p_4411877 and since 75317513 and 4411877 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75317513.

It is not a weakly prime, because it can be changed into another prime (75317113) 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, 37658756 + 37658757.

It is an arithmetic number, because the mean of its divisors is an integer number (37658757).

Almost surely, 2^75317513 is an apocalyptic number.

It is an amenable number.

75317513 is a deficient number, since it is larger than the sum of its proper divisors (1).

75317513 is an equidigital number, since it uses as much as digits as its factorization.

75317513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11025, while the sum is 32.

The square root of 75317513 is about 8678.5662986463. The cubic root of 75317513 is about 422.3106077842.

The spelling of 75317513 in words is "seventy-five million, three hundred seventeen thousand, five hundred thirteen".