172044245 has 4 divisors (see below), whose sum is σ = 206453100. Its totient is φ = 137635392.

The previous prime is 172044227. The next prime is 172044251. The reversal of 172044245 is 542440271.

172044245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542440271 = 647 ⋅838393.

It can be written as a sum of positive squares in 2 ways, for example, as 57168721 + 114875524 = 7561^2 + 10718^2 .

It is a cyclic number.

It is not a de Polignac number, because 172044245 - 2²⁴ = 155267029 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17204420 + ... + 17204429.

It is an arithmetic number, because the mean of its divisors is an integer number (51613275).

Almost surely, 2^172044245 is an apocalyptic number.

It is an amenable number.

172044245 is a deficient number, since it is larger than the sum of its proper divisors (34408855).

172044245 is an equidigital number, since it uses as much as digits as its factorization.

172044245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34408854.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 172044245 is about 13116.5637649500. The cubic root of 172044245 is about 556.1774585366.

The spelling of 172044245 in words is "one hundred seventy-two million, forty-four thousand, two hundred forty-five".