172545325 has 12 divisors (see below), whose sum is σ = 226542420. Its totient is φ = 129916160.

The previous prime is 172545299. The next prime is 172545337. The reversal of 172545325 is 523545271.

It can be written as a sum of positive squares in 6 ways, for example, as 4116841 + 168428484 = 2029^2 + 12978^2 .

It is not a de Polignac number, because 172545325 - 2⁵ = 172545293 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 202570 + ... + 203419.

It is an arithmetic number, because the mean of its divisors is an integer number (18878535).

Almost surely, 2^172545325 is an apocalyptic number.

It is an amenable number.

172545325 is a deficient number, since it is larger than the sum of its proper divisors (53997095).

172545325 is a wasteful number, since it uses less digits than its factorization.

172545325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406016 (or 406011 counting only the distinct ones).

The product of its digits is 42000, while the sum is 34.

The square root of 172545325 is about 13135.6509164944. The cubic root of 172545325 is about 556.7168920145.

The spelling of 172545325 in words is "one hundred seventy-two million, five hundred forty-five thousand, three hundred twenty-five".