975167813 has 2 divisors, whose sum is σ = 975167814. Its totient is φ = 975167812.

The previous prime is 975167789. The next prime is 975167867. The reversal of 975167813 is 318761579.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 931897729 + 43270084 = 30527^2 + 6578^2 .

It is an emirp because it is prime and its reverse (318761579) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 975167813 - 2²⁴ = 958390597 is a prime.

It is a super-2 number, since 2×975167813² = 1901904527022405938, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (975167113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487583906 + 487583907.

It is an arithmetic number, because the mean of its divisors is an integer number (487583907).

Almost surely, 2^975167813 is an apocalyptic number.

It is an amenable number.

975167813 is a deficient number, since it is larger than the sum of its proper divisors (1).

975167813 is an equidigital number, since it uses as much as digits as its factorization.

975167813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 47.

The square root of 975167813 is about 31227.6770349637. The cubic root of 975167813 is about 991.6531279025.

The spelling of 975167813 in words is "nine hundred seventy-five million, one hundred sixty-seven thousand, eight hundred thirteen".