129760441 has 4 divisors (see below), whose sum is σ = 131697232. Its totient is φ = 127823652.

The previous prime is 129760417. The next prime is 129760447. The reversal of 129760441 is 144067921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 129760441 - 2⁵ = 129760409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129760397 and 129760406.

It is not an unprimeable number, because it can be changed into a prime (129760447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 968295 + ... + 968428.

It is an arithmetic number, because the mean of its divisors is an integer number (32924308).

Almost surely, 2^129760441 is an apocalyptic number.

It is an amenable number.

129760441 is a deficient number, since it is larger than the sum of its proper divisors (1936791).

129760441 is an equidigital number, since it uses as much as digits as its factorization.

129760441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936790.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 129760441 is about 11391.2440497077. The cubic root of 129760441 is about 506.2683420474.

The spelling of 129760441 in words is "one hundred twenty-nine million, seven hundred sixty thousand, four hundred forty-one".