129226325 has 6 divisors (see below), whose sum is σ = 160240674. Its totient is φ = 103381040.

The previous prime is 129226297. The next prime is 129226327. The reversal of 129226325 is 523622921.

It can be written as a sum of positive squares in 3 ways, for example, as 19018321 + 110208004 = 4361^2 + 10498^2 .

It is not a de Polignac number, because 129226325 - 2¹⁰ = 129225301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129226291 and 129226300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129226327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2584502 + ... + 2584551.

It is an arithmetic number, because the mean of its divisors is an integer number (26706779).

Almost surely, 2^129226325 is an apocalyptic number.

It is an amenable number.

129226325 is a deficient number, since it is larger than the sum of its proper divisors (31014349).

129226325 is an equidigital number, since it uses as much as digits as its factorization.

129226325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5169063 (or 5169058 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 129226325 is about 11367.7757279074. The cubic root of 129226325 is about 505.5727579829.

The spelling of 129226325 in words is "one hundred twenty-nine million, two hundred twenty-six thousand, three hundred twenty-five".