129401106 has 16 divisors (see below), whose sum is σ = 259689024. Its totient is φ = 42985904.

The previous prime is 129401089. The next prime is 129401141. The reversal of 129401106 is 601104921.

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, 35046 + ... + 38561.

It is an arithmetic number, because the mean of its divisors is an integer number (16230564).

Almost surely, 2^129401106 is an apocalyptic number.

129401106 is an abundant number, since it is smaller than the sum of its proper divisors (130287918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129401106 is a wasteful number, since it uses less digits than its factorization.

129401106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73905.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 129401106 is about 11375.4606939675. The cubic root of 129401106 is about 505.8005874748.

The spelling of 129401106 in words is "one hundred twenty-nine million, four hundred one thousand, one hundred six".