129030911 has 8 divisors (see below), whose sum is σ = 129838800. Its totient is φ = 128226240.

The previous prime is 129030907. The next prime is 129030949. The reversal of 129030911 is 119030921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129030911 - 2² = 129030907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129030511) 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 in 7 ways as a sum of consecutive naturals, for example, 158696 + ... + 159506.

It is an arithmetic number, because the mean of its divisors is an integer number (16229850).

Almost surely, 2^129030911 is an apocalyptic number.

129030911 is a deficient number, since it is larger than the sum of its proper divisors (807889).

129030911 is an equidigital number, since it uses as much as digits as its factorization.

129030911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 129030911 is about 11359.1773909910. The cubic root of 129030911 is about 505.3177897168.

The spelling of 129030911 in words is "one hundred twenty-nine million, thirty thousand, nine hundred eleven".