129654473 has 8 divisors (see below), whose sum is σ = 145699008. Its totient is φ = 114477264.

The previous prime is 129654457. The next prime is 129654479. The reversal of 129654473 is 374456921.

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

It is a cyclic number.

It is not a de Polignac number, because 129654473 - 2⁴ = 129654457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129654473.

It is not an unprimeable number, because it can be changed into a prime (129654479) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 216515 + ... + 217112.

It is an arithmetic number, because the mean of its divisors is an integer number (18212376).

Almost surely, 2^129654473 is an apocalyptic number.

129654473 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

129654473 is a deficient number, since it is larger than the sum of its proper divisors (16044535).

129654473 is a wasteful number, since it uses less digits than its factorization.

129654473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433663.

The product of its digits is 181440, while the sum is 41.

The square root of 129654473 is about 11386.5918079116. The cubic root of 129654473 is about 506.1304909589.

The spelling of 129654473 in words is "one hundred twenty-nine million, six hundred fifty-four thousand, four hundred seventy-three".