129141516 has 24 divisors (see below), whose sum is σ = 344377600. Its totient is φ = 36897552.

The previous prime is 129141497. The next prime is 129141521. The reversal of 129141516 is 615141921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 768616 + ... + 768783.

Almost surely, 2^129141516 is an apocalyptic number.

It is an amenable number.

129141516 is an abundant number, since it is smaller than the sum of its proper divisors (215236084).

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

129141516 is a wasteful number, since it uses less digits than its factorization.

129141516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537413 (or 1537411 counting only the distinct ones).

The product of its digits is 2160, while the sum is 30.

The square root of 129141516 is about 11364.0448784753. The cubic root of 129141516 is about 505.4621342296.

The spelling of 129141516 in words is "one hundred twenty-nine million, one hundred forty-one thousand, five hundred sixteen".