129487048 has 16 divisors (see below), whose sum is σ = 243656460. Its totient is φ = 64512000.

The previous prime is 129487019. The next prime is 129487049. The reversal of 129487048 is 840784921.

It can be written as a sum of positive squares in 2 ways, for example, as 102050404 + 27436644 = 10102^2 + 5238^2 .

It is a junction number, because it is equal to n+sod(n) for n = 129486995 and 129487013.

It is not an unprimeable number, because it can be changed into a prime (129487049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26553 + ... + 31048.

Almost surely, 2^129487048 is an apocalyptic number.

It is an amenable number.

129487048 is a deficient number, since it is larger than the sum of its proper divisors (114169412).

129487048 is a wasteful number, since it uses less digits than its factorization.

129487048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57888 (or 57884 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 129487048 is about 11379.2375843024. The cubic root of 129487048 is about 505.9125388471.

The spelling of 129487048 in words is "one hundred twenty-nine million, four hundred eighty-seven thousand, forty-eight".