1530231019 has 2 divisors, whose sum is σ = 1530231020. Its totient is φ = 1530231018.

The previous prime is 1530231011. The next prime is 1530231041. The reversal of 1530231019 is 9101320351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1530231019 - 2³ = 1530231011 is a prime.

It is a super-2 number, since 2×1530231019² = 4683213943019556722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1530230984 and 1530231002.

It is not a weakly prime, because it can be changed into another prime (1530231011) 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, 765115509 + 765115510.

It is an arithmetic number, because the mean of its divisors is an integer number (765115510).

Almost surely, 2^1530231019 is an apocalyptic number.

1530231019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530231019 is an equidigital number, since it uses as much as digits as its factorization.

1530231019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 1530231019 is about 39118.1673778310. The cubic root of 1530231019 is about 1152.3533456969.

The spelling of 1530231019 in words is "one billion, five hundred thirty million, two hundred thirty-one thousand, nineteen".