129037489 has 8 divisors (see below), whose sum is σ = 148598208. Its totient is φ = 109758480.

The previous prime is 129037487. The next prime is 129037523. The reversal of 129037489 is 984730921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129037489 - 2¹ = 129037487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129037481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69442 + ... + 71275.

It is an arithmetic number, because the mean of its divisors is an integer number (18574776).

Almost surely, 2^129037489 is an apocalyptic number.

It is an amenable number.

129037489 is a deficient number, since it is larger than the sum of its proper divisors (19560719).

129037489 is a wasteful number, since it uses less digits than its factorization.

129037489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140855.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 129037489 is about 11359.4669329155. The cubic root of 129037489 is about 505.3263766100.

The spelling of 129037489 in words is "one hundred twenty-nine million, thirty-seven thousand, four hundred eighty-nine".