129487033 has 24 divisors (see below), whose sum is σ = 153601280. Its totient is φ = 108203040.

The previous prime is 129487019. The next prime is 129487049. The reversal of 129487033 is 330784921.

It is a de Polignac number, because none of the positive numbers 2^k-129487033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129486983 and 129487001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129487133) 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 23 ways as a sum of consecutive naturals, for example, 130168 + ... + 131158.

Almost surely, 2^129487033 is an apocalyptic number.

129487033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

129487033 is a deficient number, since it is larger than the sum of its proper divisors (24114247).

129487033 is a wasteful number, since it uses less digits than its factorization.

129487033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069 (or 1046 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 129487033 is about 11379.2369252072. The cubic root of 129487033 is about 505.9125193119.

The spelling of 129487033 in words is "one hundred twenty-nine million, four hundred eighty-seven thousand, thirty-three".