129954832 has 80 divisors (see below), whose sum is σ = 305516160. Its totient is φ = 52310016.

The previous prime is 129954823. The next prime is 129954833. The reversal of 129954832 is 238459921.

It is a super-3 number, since 3×129954832³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (129954833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367968 + ... + 368320.

It is an arithmetic number, because the mean of its divisors is an integer number (3818952).

Almost surely, 2^129954832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129954832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152758080).

129954832 is an abundant number, since it is smaller than the sum of its proper divisors (175561328).

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

129954832 is a wasteful number, since it uses less digits than its factorization.

129954832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 554 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 129954832 is about 11399.7733310799. The cubic root of 129954832 is about 506.5210253909.

The spelling of 129954832 in words is "one hundred twenty-nine million, nine hundred fifty-four thousand, eight hundred thirty-two".