4530029981 has 2 divisors, whose sum is σ = 4530029982. Its totient is φ = 4530029980.

The previous prime is 4530029963. The next prime is 4530030013. The reversal of 4530029981 is 1899200354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4099840900 + 430189081 = 64030^2 + 20741^2 .

It is a cyclic number.

It is not a de Polignac number, because 4530029981 - 2²⁶ = 4462921117 is a prime.

It is a super-2 number, since 2×4530029981² = 41042343257517720722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4530529981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2265014990 + 2265014991.

It is an arithmetic number, because the mean of its divisors is an integer number (2265014991).

Almost surely, 2^4530029981 is an apocalyptic number.

It is an amenable number.

4530029981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4530029981 is an equidigital number, since it uses as much as digits as its factorization.

4530029981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 4530029981 is about 67305.4974054869. The cubic root of 4530029981 is about 1654.6279599282.

The spelling of 4530029981 in words is "four billion, five hundred thirty million, twenty-nine thousand, nine hundred eighty-one".