172148120 has 32 divisors (see below), whose sum is σ = 410119200. Its totient is φ = 64808448.

The previous prime is 172148117. The next prime is 172148153. The reversal of 172148120 is 21841271.

It is a self number, because there is not a number n which added to its sum of digits gives 172148120.

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 7 ways as a sum of consecutive naturals, for example, 125900 + ... + 127259.

It is an arithmetic number, because the mean of its divisors is an integer number (12816225).

Almost surely, 2^172148120 is an apocalyptic number.

172148120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172148120 is an abundant number, since it is smaller than the sum of its proper divisors (237971080).

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

172148120 is a wasteful number, since it uses less digits than its factorization.

172148120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253187 (or 253183 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 172148120 is about 13120.5228554353. The cubic root of 172148120 is about 556.2893702723.

Adding to 172148120 its reverse (21841271), we get a palindrome (193989391).

The spelling of 172148120 in words is "one hundred seventy-two million, one hundred forty-eight thousand, one hundred twenty".