172200506 has 16 divisors (see below), whose sum is σ = 261714240. Its totient is φ = 84970080.

The previous prime is 172200491. The next prime is 172200593. The reversal of 172200506 is 605002271.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47291 + ... + 50801.

It is an arithmetic number, because the mean of its divisors is an integer number (16357140).

Almost surely, 2^172200506 is an apocalyptic number.

172200506 is a deficient number, since it is larger than the sum of its proper divisors (89513734).

172200506 is a wasteful number, since it uses less digits than its factorization.

172200506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 172200506 is about 13122.5190417084. The cubic root of 172200506 is about 556.3457922641.

Adding to 172200506 its reverse (605002271), we get a palindrome (777202777).

The spelling of 172200506 in words is "one hundred seventy-two million, two hundred thousand, five hundred six".