129263044 has 12 divisors (see below), whose sum is σ = 226444204. Its totient is φ = 64564704.

The previous prime is 129263027. The next prime is 129263051. The reversal of 129263044 is 440362921.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 114746944 + 14516100 = 10712^2 + 3810^2 .

It is a junction number, because it is equal to n+sod(n) for n = 129262997 and 129263015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12219 + ... + 20194.

Almost surely, 2^129263044 is an apocalyptic number.

It is an amenable number.

129263044 is a deficient number, since it is larger than the sum of its proper divisors (97181160).

129263044 is a wasteful number, since it uses less digits than its factorization.

129263044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33414 (or 33412 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 129263044 is about 11369.3906608930. The cubic root of 129263044 is about 505.6206387535.

The spelling of 129263044 in words is "one hundred twenty-nine million, two hundred sixty-three thousand, forty-four".