129010745 has 8 divisors (see below), whose sum is σ = 157734216. Its totient is φ = 101261056.

The previous prime is 129010729. The next prime is 129010781. The reversal of 129010745 is 547010921.

It can be written as a sum of positive squares in 4 ways, for example, as 64192144 + 64818601 = 8012^2 + 8051^2 .

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 129010745 - 2⁴ = 129010729 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243152 + ... + 243681.

It is an arithmetic number, because the mean of its divisors is an integer number (19716777).

Almost surely, 2^129010745 is an apocalyptic number.

It is an amenable number.

129010745 is a deficient number, since it is larger than the sum of its proper divisors (28723471).

129010745 is an equidigital number, since it uses as much as digits as its factorization.

129010745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486891.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 129010745 is about 11358.2897040003. The cubic root of 129010745 is about 505.2914632875.

The spelling of 129010745 in words is "one hundred twenty-nine million, ten thousand, seven hundred forty-five".