1530874481 has 2 divisors, whose sum is σ = 1530874482. Its totient is φ = 1530874480.

The previous prime is 1530874453. The next prime is 1530874487. The reversal of 1530874481 is 1844780351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1519752256 + 11122225 = 38984^2 + 3335^2 .

It is an emirp because it is prime and its reverse (1844780351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1530874481 - 2¹⁴ = 1530858097 is a prime.

It is a super-2 number, since 2×1530874481² = 4687153353154038722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1530874487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765437240 + 765437241.

It is an arithmetic number, because the mean of its divisors is an integer number (765437241).

Almost surely, 2^1530874481 is an apocalyptic number.

It is an amenable number.

1530874481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530874481 is an equidigital number, since it uses as much as digits as its factorization.

1530874481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 1530874481 is about 39126.3911062597. The cubic root of 1530874481 is about 1152.5148445536.

The spelling of 1530874481 in words is "one billion, five hundred thirty million, eight hundred seventy-four thousand, four hundred eighty-one".