172152200 has 96 divisors (see below), whose sum is σ = 462425760. Its totient is φ = 58905600.

The previous prime is 172152181. The next prime is 172152203. The reversal of 172152200 is 2251271.

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

It is not an unprimeable number, because it can be changed into a prime (172152203) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 35099 + ... + 39701.

It is an arithmetic number, because the mean of its divisors is an integer number (4816935).

Almost surely, 2^172152200 is an apocalyptic number.

172152200 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 172152200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231212880).

172152200 is an abundant number, since it is smaller than the sum of its proper divisors (290273560).

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

172152200 is a wasteful number, since it uses less digits than its factorization.

172152200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4647 (or 4638 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 172152200 is about 13120.6783361227. The cubic root of 172152200 is about 556.2937650201.

The spelling of 172152200 in words is "one hundred seventy-two million, one hundred fifty-two thousand, two hundred".