129573433 has 8 divisors (see below), whose sum is σ = 141802560. Its totient is φ = 117419280.

The previous prime is 129573403. The next prime is 129573443. The reversal of 129573433 is 334375921.

It is a happy number.

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

It is not a de Polignac number, because 129573433 - 2¹⁷ = 129442361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129573392 and 129573401.

It is not an unprimeable number, because it can be changed into a prime (129573403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15093 + ... + 22066.

It is an arithmetic number, because the mean of its divisors is an integer number (17725320).

Almost surely, 2^129573433 is an apocalyptic number.

It is an amenable number.

129573433 is a deficient number, since it is larger than the sum of its proper divisors (12229127).

129573433 is a wasteful number, since it uses less digits than its factorization.

129573433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37487.

The product of its digits is 68040, while the sum is 37.

The square root of 129573433 is about 11383.0326802658. The cubic root of 129573433 is about 506.0250173803.

The spelling of 129573433 in words is "one hundred twenty-nine million, five hundred seventy-three thousand, four hundred thirty-three".