129887014 has 4 divisors (see below), whose sum is σ = 194830524. Its totient is φ = 64943506.

The previous prime is 129886997. The next prime is 129887041. The reversal of 129887014 is 410788921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32471752 + ... + 32471755.

It is an arithmetic number, because the mean of its divisors is an integer number (48707631).

Almost surely, 2^129887014 is an apocalyptic number.

129887014 is a deficient number, since it is larger than the sum of its proper divisors (64943510).

129887014 is an equidigital number, since it uses as much as digits as its factorization.

129887014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64943509.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 129887014 is about 11396.7984100799. The cubic root of 129887014 is about 506.4328993356.

It can be divided in two parts, 12988 and 7014, that added together give a palindrome (20002).

The spelling of 129887014 in words is "one hundred twenty-nine million, eight hundred eighty-seven thousand, fourteen".