1500230513 has 2 divisors, whose sum is σ = 1500230514. Its totient is φ = 1500230512.

The previous prime is 1500230509. The next prime is 1500230531. The reversal of 1500230513 is 3150320051.

Together with next prime (1500230531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1150091569 + 350138944 = 33913^2 + 18712^2 .

It is a cyclic number.

It is not a de Polignac number, because 1500230513 - 2² = 1500230509 is a prime.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 750115256 + 750115257.

It is an arithmetic number, because the mean of its divisors is an integer number (750115257).

Almost surely, 2^1500230513 is an apocalyptic number.

It is an amenable number.

1500230513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1500230513 is an equidigital number, since it uses as much as digits as its factorization.

1500230513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 1500230513 is about 38732.8092577856. The cubic root of 1500230513 is about 1144.7728776641.

Adding to 1500230513 its reverse (3150320051), we get a palindrome (4650550564).

The spelling of 1500230513 in words is "one billion, five hundred million, two hundred thirty thousand, five hundred thirteen".