129050417 has 8 divisors (see below), whose sum is σ = 136855656. Its totient is φ = 121268992.

The previous prime is 129050399. The next prime is 129050429. The reversal of 129050417 is 714050921.

It can be written as a sum of positive squares in 4 ways, for example, as 41422096 + 87628321 = 6436^2 + 9361^2 .

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 129050417 - 2¹⁸ = 128788273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 129050417.

It is not an unprimeable number, because it can be changed into a prime (129053417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5903 + ... + 17115.

It is an arithmetic number, because the mean of its divisors is an integer number (17106957).

Almost surely, 2^129050417 is an apocalyptic number.

129050417 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

129050417 is a deficient number, since it is larger than the sum of its proper divisors (7805239).

129050417 is a wasteful number, since it uses less digits than its factorization.

129050417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11907.

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

The square root of 129050417 is about 11360.0359594501. The cubic root of 129050417 is about 505.3432519157.

The spelling of 129050417 in words is "one hundred twenty-nine million, fifty thousand, four hundred seventeen".