1530044981 has 2 divisors, whose sum is σ = 1530044982. Its totient is φ = 1530044980.

The previous prime is 1530044941. The next prime is 1530045007. The reversal of 1530044981 is 1894400351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1367890225 + 162154756 = 36985^2 + 12734^2 .

It is an emirp because it is prime and its reverse (1894400351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1530044981 - 2³⁰ = 456303157 is a prime.

It is a super-2 number, since 2×1530044981² = 4682075287766580722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1530044941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765022490 + 765022491.

It is an arithmetic number, because the mean of its divisors is an integer number (765022491).

Almost surely, 2^1530044981 is an apocalyptic number.

It is an amenable number.

1530044981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530044981 is an equidigital number, since it uses as much as digits as its factorization.

1530044981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1530044981 is about 39115.7894078593. The cubic root of 1530044981 is about 1152.3066446438.

The spelling of 1530044981 in words is "one billion, five hundred thirty million, forty-four thousand, nine hundred eighty-one".