30129959 has 2 divisors, whose sum is σ = 30129960. Its totient is φ = 30129958.

The previous prime is 30129949. The next prime is 30129989. The reversal of 30129959 is 95992103.

It is a weak prime.

It is an emirp because it is prime and its reverse (95992103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30129959 - 2¹⁶ = 30064423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30129949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15064979 + 15064980.

It is an arithmetic number, because the mean of its divisors is an integer number (15064980).

Almost surely, 2^30129959 is an apocalyptic number.

30129959 is a deficient number, since it is larger than the sum of its proper divisors (1).

30129959 is an equidigital number, since it uses as much as digits as its factorization.

30129959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 30129959 is about 5489.0763339564. The cubic root of 30129959 is about 311.1712851813.

The spelling of 30129959 in words is "thirty million, one hundred twenty-nine thousand, nine hundred fifty-nine".