129446545 has 8 divisors (see below), whose sum is σ = 160346880. Its totient is φ = 100216560.

The previous prime is 129446519. The next prime is 129446573. The reversal of 129446545 is 545644921.

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

It is not a de Polignac number, because 129446545 - 2⁷ = 129446417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129446498 and 129446507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417415 + ... + 417724.

It is an arithmetic number, because the mean of its divisors is an integer number (20043360).

Almost surely, 2^129446545 is an apocalyptic number.

It is an amenable number.

129446545 is a deficient number, since it is larger than the sum of its proper divisors (30900335).

129446545 is an equidigital number, since it uses as much as digits as its factorization.

129446545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835175.

The product of its digits is 172800, while the sum is 40.

The square root of 129446545 is about 11377.4577564586. The cubic root of 129446545 is about 505.8597842467.

The spelling of 129446545 in words is "one hundred twenty-nine million, four hundred forty-six thousand, five hundred forty-five".