171343540 has 48 divisors (see below), whose sum is σ = 366545088. Its totient is φ = 67268864.

The previous prime is 171343517. The next prime is 171343553. The reversal of 171343540 is 45343171.

It is a junction number, because it is equal to n+sod(n) for n = 171343499 and 171343508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386559 + ... + 387001.

It is an arithmetic number, because the mean of its divisors is an integer number (7636356).

Almost surely, 2^171343540 is an apocalyptic number.

171343540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

171343540 is an abundant number, since it is smaller than the sum of its proper divisors (195201548).

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

171343540 is a wasteful number, since it uses less digits than its factorization.

171343540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 171343540 is about 13089.8258200787. The cubic root of 171343540 is about 555.4213611583.

The spelling of 171343540 in words is "one hundred seventy-one million, three hundred forty-three thousand, five hundred forty".