172534120 has 64 divisors (see below), whose sum is σ = 425917440. Its totient is φ = 62380800.

The previous prime is 172534099. The next prime is 172534121. The reversal of 172534120 is 21435271.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (172534121) 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 15 ways as a sum of consecutive naturals, for example, 83014 + ... + 85066.

It is an arithmetic number, because the mean of its divisors is an integer number (6654960).

Almost surely, 2^172534120 is an apocalyptic number.

172534120 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 172534120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212958720).

172534120 is an abundant number, since it is smaller than the sum of its proper divisors (253383320).

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

172534120 is a wasteful number, since it uses less digits than its factorization.

172534120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266 (or 2262 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 172534120 is about 13135.2243985400. The cubic root of 172534120 is about 556.7048407891.

Adding to 172534120 its reverse (21435271), we get a palindrome (193969391).

The spelling of 172534120 in words is "one hundred seventy-two million, five hundred thirty-four thousand, one hundred twenty".