172412500 has 72 divisors (see below), whose sum is σ = 406520856. Its totient is φ = 63600000.

The previous prime is 172412477. The next prime is 172412501. The reversal of 172412500 is 5214271.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 171400464 + 1012036 = 13092^2 + 1006^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172412501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161970 + ... + 163030.

It is an arithmetic number, because the mean of its divisors is an integer number (5646123).

Almost surely, 2^172412500 is an apocalyptic number.

172412500 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 172412500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203260428).

172412500 is an abundant number, since it is smaller than the sum of its proper divisors (234108356).

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

172412500 is a wasteful number, since it uses less digits than its factorization.

172412500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103 (or 1081 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 172412500 is about 13130.5940459676. The cubic root of 172412500 is about 556.5740022090.

Adding to 172412500 its reverse (5214271), we get a palindrome (177626771).

The spelling of 172412500 in words is "one hundred seventy-two million, four hundred twelve thousand, five hundred".