1530142217 has 2 divisors, whose sum is σ = 1530142218. Its totient is φ = 1530142216.

The previous prime is 1530142193. The next prime is 1530142241. The reversal of 1530142217 is 7122410351.

It is a balanced prime because it is at equal distance from previous prime (1530142193) and next prime (1530142241).

It can be written as a sum of positive squares in only one way, i.e., 1442176576 + 87965641 = 37976^2 + 9379^2 .

It is a cyclic number.

It is not a de Polignac number, because 1530142217 - 2³⁰ = 456400393 is a prime.

It is not a weakly prime, because it can be changed into another prime (1530142247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765071108 + 765071109.

It is an arithmetic number, because the mean of its divisors is an integer number (765071109).

Almost surely, 2^1530142217 is an apocalyptic number.

It is an amenable number.

1530142217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530142217 is an equidigital number, since it uses as much as digits as its factorization.

1530142217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1530142217 is about 39117.0323133031. The cubic root of 1530142217 is about 1152.3310542346.

Adding to 1530142217 its reverse (7122410351), we get a palindrome (8652552568).

The spelling of 1530142217 in words is "one billion, five hundred thirty million, one hundred forty-two thousand, two hundred seventeen".