129341845 has 8 divisors (see below), whose sum is σ = 156015576. Its totient is φ = 102936576.

The previous prime is 129341833. The next prime is 129341867. The reversal of 129341845 is 548143921.

It can be written as a sum of positive squares in 4 ways, for example, as 6265009 + 123076836 = 2503^2 + 11094^2 .

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 129341845 - 2⁵ = 129341813 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 66052 + ... + 67981.

It is an arithmetic number, because the mean of its divisors is an integer number (19501947).

Almost surely, 2^129341845 is an apocalyptic number.

It is an amenable number.

129341845 is a deficient number, since it is larger than the sum of its proper divisors (26673731).

129341845 is a wasteful number, since it uses less digits than its factorization.

129341845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134231.

The product of its digits is 34560, while the sum is 37.

The square root of 129341845 is about 11372.8556220503. The cubic root of 129341845 is about 505.7233629276.

The spelling of 129341845 in words is "one hundred twenty-nine million, three hundred forty-one thousand, eight hundred forty-five".