30139663 has 2 divisors, whose sum is σ = 30139664. Its totient is φ = 30139662.

The previous prime is 30139661. The next prime is 30139679. The reversal of 30139663 is 36693103.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30139663 - 2¹ = 30139661 is a prime.

Together with 30139661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30139661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15069831 + 15069832.

It is an arithmetic number, because the mean of its divisors is an integer number (15069832).

Almost surely, 2^30139663 is an apocalyptic number.

30139663 is a deficient number, since it is larger than the sum of its proper divisors (1).

30139663 is an equidigital number, since it uses as much as digits as its factorization.

30139663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 30139663 is about 5489.9602002200. The cubic root of 30139663 is about 311.2046880592.

The spelling of 30139663 in words is "thirty million, one hundred thirty-nine thousand, six hundred sixty-three".