129416142 has 16 divisors (see below), whose sum is σ = 263716560. Its totient is φ = 42324672.

The previous prime is 129416137. The next prime is 129416143. The reversal of 129416142 is 241614921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129416143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203167 + ... + 203802.

It is an arithmetic number, because the mean of its divisors is an integer number (16482285).

Almost surely, 2^129416142 is an apocalyptic number.

129416142 is an abundant number, since it is smaller than the sum of its proper divisors (134300418).

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

129416142 is a wasteful number, since it uses less digits than its factorization.

129416142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407027.

The product of its digits is 3456, while the sum is 30.

The square root of 129416142 is about 11376.1215710804. The cubic root of 129416142 is about 505.8201775266.

The spelling of 129416142 in words is "one hundred twenty-nine million, four hundred sixteen thousand, one hundred forty-two".