129114660 has 48 divisors (see below), whose sum is σ = 382790016. Its totient is φ = 32404992.

The previous prime is 129114647. The next prime is 129114743. The reversal of 129114660 is 66411921.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62272 + ... + 64311.

It is an arithmetic number, because the mean of its divisors is an integer number (7974792).

Almost surely, 2^129114660 is an apocalyptic number.

129114660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129114660 is an abundant number, since it is smaller than the sum of its proper divisors (253675356).

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

129114660 is a wasteful number, since it uses less digits than its factorization.

129114660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126612 (or 126610 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 129114660 is about 11362.8631955155. The cubic root of 129114660 is about 505.4270935172.

It can be divided in two parts, 12911 and 4660, that added together give a palindrome (17571).

The spelling of 129114660 in words is "one hundred twenty-nine million, one hundred fourteen thousand, six hundred sixty".