1500230509 has 2 divisors, whose sum is σ = 1500230510. Its totient is φ = 1500230508.

The previous prime is 1500230503. The next prime is 1500230513. The reversal of 1500230509 is 9050320051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1499393284 + 837225 = 38722^2 + 915^2 .

It is a cyclic number.

It is not a de Polignac number, because 1500230509 - 2²⁵ = 1466676077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1500230503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 750115254 + 750115255.

It is an arithmetic number, because the mean of its divisors is an integer number (750115255).

Almost surely, 2^1500230509 is an apocalyptic number.

It is an amenable number.

1500230509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1500230509 is an equidigital number, since it uses as much as digits as its factorization.

1500230509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 1500230509 is about 38732.8092061498. The cubic root of 1500230509 is about 1144.7728766467.

The spelling of 1500230509 in words is "one billion, five hundred million, two hundred thirty thousand, five hundred nine".