520453189 has 2 divisors, whose sum is σ = 520453190. Its totient is φ = 520453188.

The previous prime is 520453133. The next prime is 520453277. The reversal of 520453189 is 981354025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 281132289 + 239320900 = 16767^2 + 15470^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520453189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520453289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260226594 + 260226595.

It is an arithmetic number, because the mean of its divisors is an integer number (260226595).

Almost surely, 2^520453189 is an apocalyptic number.

It is an amenable number.

520453189 is a deficient number, since it is larger than the sum of its proper divisors (1).

520453189 is an equidigital number, since it uses as much as digits as its factorization.

520453189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 520453189 is about 22813.4431640645. The cubic root of 520453189 is about 804.3786926918.

The spelling of 520453189 in words is "five hundred twenty million, four hundred fifty-three thousand, one hundred eighty-nine".