171952980 has 48 divisors (see below), whose sum is σ = 487576320. Its totient is φ = 45272448.

The previous prime is 171952889. The next prime is 171952981. The reversal of 171952980 is 89259171.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171952981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13399 + ... + 22878.

It is an arithmetic number, because the mean of its divisors is an integer number (10157840).

Almost surely, 2^171952980 is an apocalyptic number.

171952980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

171952980 is an abundant number, since it is smaller than the sum of its proper divisors (315623340).

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

171952980 is a wasteful number, since it uses less digits than its factorization.

171952980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36368 (or 36366 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 42.

The square root of 171952980 is about 13113.0843053799. The cubic root of 171952980 is about 556.0790952465.

The spelling of 171952980 in words is "one hundred seventy-one million, nine hundred fifty-two thousand, nine hundred eighty".