171129146 has 16 divisors (see below), whose sum is σ = 263753280. Its totient is φ = 83241600.

The previous prime is 171129139. The next prime is 171129149. The reversal of 171129146 is 641921171.

It is a happy number.

171129146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×171129146² = 58570369221378632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (171129149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3971 + ... + 18921.

It is an arithmetic number, because the mean of its divisors is an integer number (16484580).

Almost surely, 2^171129146 is an apocalyptic number.

171129146 is a deficient number, since it is larger than the sum of its proper divisors (92624134).

171129146 is a wasteful number, since it uses less digits than its factorization.

171129146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15109.

The product of its digits is 3024, while the sum is 32.

The square root of 171129146 is about 13081.6339193543. The cubic root of 171129146 is about 555.1896070503.

The spelling of 171129146 in words is "one hundred seventy-one million, one hundred twenty-nine thousand, one hundred forty-six".