30129199 has 2 divisors, whose sum is σ = 30129200. Its totient is φ = 30129198.

The previous prime is 30129157. The next prime is 30129299. The reversal of 30129199 is 99192103.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30129199 - 2¹¹ = 30127151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30129109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15064599 + 15064600.

It is an arithmetic number, because the mean of its divisors is an integer number (15064600).

Almost surely, 2^30129199 is an apocalyptic number.

30129199 is a deficient number, since it is larger than the sum of its proper divisors (1).

30129199 is an equidigital number, since it uses as much as digits as its factorization.

30129199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 30129199 is about 5489.0071051147. The cubic root of 30129199 is about 311.1686688245.

The spelling of 30129199 in words is "thirty million, one hundred twenty-nine thousand, one hundred ninety-nine".