171329140 has 24 divisors (see below), whose sum is σ = 362212200. Its totient is φ = 68070528.

The previous prime is 171329107. The next prime is 171329153. The reversal of 171329140 is 41923171.

It can be written as a sum of positive squares in 4 ways, for example, as 556516 + 170772624 = 746^2 + 13068^2 .

It is a junction number, because it is equal to n+sod(n) for n = 171329099 and 171329108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25767 + ... + 31726.

It is an arithmetic number, because the mean of its divisors is an integer number (15092175).

Almost surely, 2^171329140 is an apocalyptic number.

171329140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

171329140 is an abundant number, since it is smaller than the sum of its proper divisors (190883060).

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

171329140 is a wasteful number, since it uses less digits than its factorization.

171329140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57651 (or 57649 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 171329140 is about 13089.2757630054. The cubic root of 171329140 is about 555.4058012065.

The spelling of 171329140 in words is "one hundred seventy-one million, three hundred twenty-nine thousand, one hundred forty".