30130643 has 2 divisors, whose sum is σ = 30130644. Its totient is φ = 30130642.

The previous prime is 30130627. The next prime is 30130657. The reversal of 30130643 is 34603103.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30130643 - 2⁴ = 30130627 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (30130603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15065321 + 15065322.

It is an arithmetic number, because the mean of its divisors is an integer number (15065322).

Almost surely, 2^30130643 is an apocalyptic number.

30130643 is a deficient number, since it is larger than the sum of its proper divisors (1).

30130643 is an equidigital number, since it uses as much as digits as its factorization.

30130643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 30130643 is about 5489.1386391674. The cubic root of 30130643 is about 311.1736398647.

Adding to 30130643 its reverse (34603103), we get a palindrome (64733746).

The spelling of 30130643 in words is "thirty million, one hundred thirty thousand, six hundred forty-three".