129041425 has 12 divisors (see below), whose sum is σ = 160189276. Its totient is φ = 103118400.

The previous prime is 129041389. The next prime is 129041453. The reversal of 129041425 is 524140921.

It can be written as a sum of positive squares in 6 ways, for example, as 28901376 + 100140049 = 5376^2 + 10007^2 .

It is not a de Polignac number, because 129041425 - 2¹¹ = 129039377 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129041393 and 129041402.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25615 + ... + 30235.

Almost surely, 2^129041425 is an apocalyptic number.

It is an amenable number.

129041425 is a deficient number, since it is larger than the sum of its proper divisors (31147851).

129041425 is a wasteful number, since it uses less digits than its factorization.

129041425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5748 (or 5743 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 129041425 is about 11359.6401791606. The cubic root of 129041425 is about 505.3315145080.

The spelling of 129041425 in words is "one hundred twenty-nine million, forty-one thousand, four hundred twenty-five".