30134239 has 2 divisors, whose sum is σ = 30134240. Its totient is φ = 30134238.

The previous prime is 30134231. The next prime is 30134267. The reversal of 30134239 is 93243103.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30134239 - 2³ = 30134231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30134231) 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, 15067119 + 15067120.

It is an arithmetic number, because the mean of its divisors is an integer number (15067120).

Almost surely, 2^30134239 is an apocalyptic number.

30134239 is a deficient number, since it is larger than the sum of its proper divisors (1).

30134239 is an equidigital number, since it uses as much as digits as its factorization.

30134239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 30134239 is about 5489.4661853408. The cubic root of 30134239 is about 311.1860185794.

The spelling of 30134239 in words is "thirty million, one hundred thirty-four thousand, two hundred thirty-nine".