129033004 has 6 divisors (see below), whose sum is σ = 225807764. Its totient is φ = 64516500.

The previous prime is 129032987. The next prime is 129033011. The reversal of 129033004 is 400330921.

It is a super-2 number, since 2×129033004² = 33299032242528032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16129122 + ... + 16129129.

Almost surely, 2^129033004 is an apocalyptic number.

It is an amenable number.

129033004 is a deficient number, since it is larger than the sum of its proper divisors (96774760).

129033004 is a wasteful number, since it uses less digits than its factorization.

129033004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32258255 (or 32258253 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 129033004 is about 11359.2695187675. The cubic root of 129033004 is about 505.3205219417.

Adding to 129033004 its reverse (400330921), we get a palindrome (529363925).

The spelling of 129033004 in words is "one hundred twenty-nine million, thirty-three thousand, four".