129474394 has 8 divisors (see below), whose sum is σ = 221956128. Its totient is φ = 55489020.

The previous prime is 129474377. The next prime is 129474409. The reversal of 129474394 is 493474921.

129474394 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 129474394.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4624072 + ... + 4624099.

It is an arithmetic number, because the mean of its divisors is an integer number (27744516).

Almost surely, 2^129474394 is an apocalyptic number.

129474394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

129474394 is a deficient number, since it is larger than the sum of its proper divisors (92481734).

129474394 is an equidigital number, since it uses as much as digits as its factorization.

129474394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9248180.

The product of its digits is 217728, while the sum is 43.

The square root of 129474394 is about 11378.6815580717. The cubic root of 129474394 is about 505.8960583679.

The spelling of 129474394 in words is "one hundred twenty-nine million, four hundred seventy-four thousand, three hundred ninety-four".