129433454 has 8 divisors (see below), whose sum is σ = 194249640. Its totient is φ = 64683576.

The previous prime is 129433417. The next prime is 129433457. The reversal of 129433454 is 454334921.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129433457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11369 + ... + 19700.

It is an arithmetic number, because the mean of its divisors is an integer number (24281205).

Almost surely, 2^129433454 is an apocalyptic number.

129433454 is a deficient number, since it is larger than the sum of its proper divisors (64816186).

129433454 is a wasteful number, since it uses less digits than its factorization.

129433454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33154.

The product of its digits is 51840, while the sum is 35.

The square root of 129433454 is about 11376.8824376452. The cubic root of 129433454 is about 505.8427310462.

The spelling of 129433454 in words is "one hundred twenty-nine million, four hundred thirty-three thousand, four hundred fifty-four".