129645345 has 8 divisors (see below), whose sum is σ = 207432576. Its totient is φ = 69144176.

The previous prime is 129645323. The next prime is 129645353. The reversal of 129645345 is 543546921.

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 129645345 - 2¹⁵ = 129612577 is a prime.

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, 4321497 + ... + 4321526.

It is an arithmetic number, because the mean of its divisors is an integer number (25929072).

Almost surely, 2^129645345 is an apocalyptic number.

129645345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

129645345 is a deficient number, since it is larger than the sum of its proper divisors (77787231).

129645345 is an equidigital number, since it uses as much as digits as its factorization.

129645345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8643031.

The product of its digits is 129600, while the sum is 39.

The square root of 129645345 is about 11386.1909785494. The cubic root of 129645345 is about 506.1186130616.

The spelling of 129645345 in words is "one hundred twenty-nine million, six hundred forty-five thousand, three hundred forty-five".