30310139 has 2 divisors, whose sum is σ = 30310140. Its totient is φ = 30310138.

The previous prime is 30310127. The next prime is 30310151. The reversal of 30310139 is 93101303.

It is a balanced prime because it is at equal distance from previous prime (30310127) and next prime (30310151).

It is a cyclic number.

It is not a de Polignac number, because 30310139 - 2⁴ = 30310123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30310139.

It is not a weakly prime, because it can be changed into another prime (30310169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15155069 + 15155070.

It is an arithmetic number, because the mean of its divisors is an integer number (15155070).

Almost surely, 2^30310139 is an apocalyptic number.

30310139 is a deficient number, since it is larger than the sum of its proper divisors (1).

30310139 is an equidigital number, since it uses as much as digits as its factorization.

30310139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243, while the sum is 20.

The square root of 30310139 is about 5505.4644672362. The cubic root of 30310139 is about 311.7903307224.

The spelling of 30310139 in words is "thirty million, three hundred ten thousand, one hundred thirty-nine".