575148989 has 2 divisors, whose sum is σ = 575148990. Its totient is φ = 575148988.

The previous prime is 575148961. The next prime is 575149009. The reversal of 575148989 is 989841575.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 324180025 + 250968964 = 18005^2 + 15842^2 .

It is a cyclic number.

It is not a de Polignac number, because 575148989 - 2²⁰ = 574100413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (575148929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 287574494 + 287574495.

It is an arithmetic number, because the mean of its divisors is an integer number (287574495).

Almost surely, 2^575148989 is an apocalyptic number.

It is an amenable number.

575148989 is a deficient number, since it is larger than the sum of its proper divisors (1).

575148989 is an equidigital number, since it uses as much as digits as its factorization.

575148989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3628800, while the sum is 56.

The square root of 575148989 is about 23982.2640507522. The cubic root of 575148989 is about 831.6235647042.

The spelling of 575148989 in words is "five hundred seventy-five million, one hundred forty-eight thousand, nine hundred eighty-nine".