30530651 has 2 divisors, whose sum is σ = 30530652. Its totient is φ = 30530650.

The previous prime is 30530641. The next prime is 30530659. The reversal of 30530651 is 15603503.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30530651 - 2¹⁰ = 30529627 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (30530659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15265325 + 15265326.

It is an arithmetic number, because the mean of its divisors is an integer number (15265326).

Almost surely, 2^30530651 is an apocalyptic number.

30530651 is a deficient number, since it is larger than the sum of its proper divisors (1).

30530651 is an equidigital number, since it uses as much as digits as its factorization.

30530651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 30530651 is about 5525.4548229082. The cubic root of 30530651 is about 312.5446157099.

The spelling of 30530651 in words is "thirty million, five hundred thirty thousand, six hundred fifty-one".