1500230531 has 2 divisors, whose sum is σ = 1500230532. Its totient is φ = 1500230530.

The previous prime is 1500230513. The next prime is 1500230539. The reversal of 1500230531 is 1350320051.

Together with previous prime (1500230513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1500230531 is a prime.

It is a super-2 number, since 2×1500230531² = 4501383292289083922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1500230539) 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, 750115265 + 750115266.

It is an arithmetic number, because the mean of its divisors is an integer number (750115266).

Almost surely, 2^1500230531 is an apocalyptic number.

1500230531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1500230531 is an equidigital number, since it uses as much as digits as its factorization.

1500230531 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1500230531 is about 38732.8094901467. The cubic root of 1500230531 is about 1144.7728822425.

Adding to 1500230531 its reverse (1350320051), we get a palindrome (2850550582).

The spelling of 1500230531 in words is "one billion, five hundred million, two hundred thirty thousand, five hundred thirty-one".