129487002 has 8 divisors (see below), whose sum is σ = 258974016. Its totient is φ = 43162332.

The previous prime is 129486991. The next prime is 129487009. The reversal of 129487002 is 200784921.

It is a happy number.

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

129487002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (129487009) 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, 10790578 + ... + 10790589.

It is an arithmetic number, because the mean of its divisors is an integer number (32371752).

Almost surely, 2^129487002 is an apocalyptic number.

129487002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129487002 is a wasteful number, since it uses less digits than its factorization.

129487002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21581172.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 129487002 is about 11379.2355630772. The cubic root of 129487002 is about 505.9124789390.

The spelling of 129487002 in words is "one hundred twenty-nine million, four hundred eighty-seven thousand, two".