172271000 has 64 divisors (see below), whose sum is σ = 439788960. Its totient is φ = 62640000.

The previous prime is 172270997. The next prime is 172271017. The reversal of 172271000 is 172271.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3170 + ... + 18830.

Almost surely, 2^172271000 is an apocalyptic number.

172271000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172271000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219894480).

172271000 is an abundant number, since it is smaller than the sum of its proper divisors (267517960).

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

172271000 is a wasteful number, since it uses less digits than its factorization.

172271000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15693 (or 15679 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 172271000 is about 13125.2047603076. The cubic root of 172271000 is about 556.4216992996.

172271000 divided by its reverse (172271) gives a cube (1000 = 10³).

It can be divided in two parts, 172 and 271000, that added together give a palindrome (271172).

The spelling of 172271000 in words is "one hundred seventy-two million, two hundred seventy-one thousand".