129833270 has 128 divisors (see below), whose sum is σ = 300810240. Its totient is φ = 39346560.

The previous prime is 129833237. The next prime is 129833287. The reversal of 129833270 is 72338921.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 129833270.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1937777 + ... + 1937843.

It is an arithmetic number, because the mean of its divisors is an integer number (2350080).

Almost surely, 2^129833270 is an apocalyptic number.

129833270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129833270 is an abundant number, since it is smaller than the sum of its proper divisors (170976970).

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

129833270 is a wasteful number, since it uses less digits than its factorization.

129833270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 129833270 is about 11394.4403109587. The cubic root of 129833270 is about 506.3630399407.

The spelling of 129833270 in words is "one hundred twenty-nine million, eight hundred thirty-three thousand, two hundred seventy".