129525734 has 8 divisors (see below), whose sum is σ = 209233920. Its totient is φ = 59781096.

The previous prime is 129525713. The next prime is 129525751. The reversal of 129525734 is 437525921.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2490854 + ... + 2490905.

It is an arithmetic number, because the mean of its divisors is an integer number (26154240).

Almost surely, 2^129525734 is an apocalyptic number.

129525734 is a deficient number, since it is larger than the sum of its proper divisors (79708186).

129525734 is a wasteful number, since it uses less digits than its factorization.

129525734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4981774.

The product of its digits is 75600, while the sum is 38.

The square root of 129525734 is about 11380.9373076210. The cubic root of 129525734 is about 505.9629165593.

The spelling of 129525734 in words is "one hundred twenty-nine million, five hundred twenty-five thousand, seven hundred thirty-four".