129043474 has 16 divisors (see below), whose sum is σ = 224520768. Its totient is φ = 54478512.

The previous prime is 129043469. The next prime is 129043477. The reversal of 129043474 is 474340921.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (129043477) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 67849 + ... + 69724.

It is an arithmetic number, because the mean of its divisors is an integer number (14032548).

Almost surely, 2^129043474 is an apocalyptic number.

129043474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

129043474 is a deficient number, since it is larger than the sum of its proper divisors (95477294).

129043474 is a wasteful number, since it uses less digits than its factorization.

129043474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137649.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 129043474 is about 11359.7303665184. The cubic root of 129043474 is about 505.3341891499.

The spelling of 129043474 in words is "one hundred twenty-nine million, forty-three thousand, four hundred seventy-four".