1530045145021 has 2 divisors, whose sum is σ = 1530045145022. Its totient is φ = 1530045145020.

The previous prime is 1530045145007. The next prime is 1530045145061. The reversal of 1530045145021 is 1205415400351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1509384244900 + 20660900121 = 1228570^2 + 143739^2 .

It is a cyclic number.

It is not a de Polignac number, because 1530045145021 - 2⁵ = 1530045144989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1530045145061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765022572510 + 765022572511.

It is an arithmetic number, because the mean of its divisors is an integer number (765022572511).

Almost surely, 2^{1530045145021} is an apocalyptic number.

It is an amenable number.

1530045145021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530045145021 is an equidigital number, since it uses as much as digits as its factorization.

1530045145021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 1530045145021 in words is "one trillion, five hundred thirty billion, forty-five million, one hundred forty-five thousand, twenty-one".