128429134 has 8 divisors (see below), whose sum is σ = 193471200. Its totient is φ = 63938736.

The previous prime is 128429107. The next prime is 128429173. The reversal of 128429134 is 431924821.

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

It is a super-3 number, since 3×128429134³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128429134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137334 + ... + 138265.

It is an arithmetic number, because the mean of its divisors is an integer number (24183900).

Almost surely, 2^128429134 is an apocalyptic number.

128429134 is a deficient number, since it is larger than the sum of its proper divisors (65042066).

128429134 is a wasteful number, since it uses less digits than its factorization.

128429134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275834.

The product of its digits is 13824, while the sum is 34.

The square root of 128429134 is about 11332.6578524193. The cubic root of 128429134 is about 504.5309948108.

The spelling of 128429134 in words is "one hundred twenty-eight million, four hundred twenty-nine thousand, one hundred thirty-four".