530145997 has 2 divisors, whose sum is σ = 530145998. Its totient is φ = 530145996.

The previous prime is 530145991. The next prime is 530146073. The reversal of 530145997 is 799541035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 352350441 + 177795556 = 18771^2 + 13334^2 .

It is a cyclic number.

It is not a de Polignac number, because 530145997 - 2³ = 530145989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (530145991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265072998 + 265072999.

It is an arithmetic number, because the mean of its divisors is an integer number (265072999).

Almost surely, 2^530145997 is an apocalyptic number.

It is an amenable number.

530145997 is a deficient number, since it is larger than the sum of its proper divisors (1).

530145997 is an equidigital number, since it uses as much as digits as its factorization.

530145997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 530145997 is about 23024.8995003236. The cubic root of 530145997 is about 809.3415351806.

The spelling of 530145997 in words is "five hundred thirty million, one hundred forty-five thousand, nine hundred ninety-seven".