129232105 has 8 divisors (see below), whose sum is σ = 156030912. Its totient is φ = 102750768.

The previous prime is 129232067. The next prime is 129232127. The reversal of 129232105 is 501232921.

It is a happy number.

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 129232105 - 2⁹ = 129231593 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 129232105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78469 + ... + 80098.

It is an arithmetic number, because the mean of its divisors is an integer number (19503864).

Almost surely, 2^129232105 is an apocalyptic number.

It is an amenable number.

129232105 is a deficient number, since it is larger than the sum of its proper divisors (26798807).

129232105 is a wasteful number, since it uses less digits than its factorization.

129232105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158735.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 129232105 is about 11368.0299524588. The cubic root of 129232105 is about 505.5802955776.

The spelling of 129232105 in words is "one hundred twenty-nine million, two hundred thirty-two thousand, one hundred five".