129474166 has 8 divisors (see below), whose sum is σ = 200476224. Its totient is φ = 62648760.

The previous prime is 129474119. The next prime is 129474167. The reversal of 129474166 is 661474921.

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

It is a super-2 number, since 2×129474166² = 33527119322791112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129474167) 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 3 ways as a sum of consecutive naturals, for example, 1044085 + ... + 1044208.

It is an arithmetic number, because the mean of its divisors is an integer number (25059528).

Almost surely, 2^129474166 is an apocalyptic number.

129474166 is a deficient number, since it is larger than the sum of its proper divisors (71002058).

129474166 is a wasteful number, since it uses less digits than its factorization.

129474166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088326.

The product of its digits is 72576, while the sum is 40.

The square root of 129474166 is about 11378.6715393318. The cubic root of 129474166 is about 505.8957614125.

The spelling of 129474166 in words is "one hundred twenty-nine million, four hundred seventy-four thousand, one hundred sixty-six".