172416445 has 8 divisors (see below), whose sum is σ = 211302144. Its totient is φ = 134998224.

The previous prime is 172416443. The next prime is 172416457. The reversal of 172416445 is 544614271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172416445 - 2¹ = 172416443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 172416445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172416443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366609 + ... + 367078.

It is an arithmetic number, because the mean of its divisors is an integer number (26412768).

Almost surely, 2^172416445 is an apocalyptic number.

It is an amenable number.

172416445 is a deficient number, since it is larger than the sum of its proper divisors (38885699).

172416445 is an equidigital number, since it uses as much as digits as its factorization.

172416445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733739.

The product of its digits is 26880, while the sum is 34.

The square root of 172416445 is about 13130.7442667962. The cubic root of 172416445 is about 556.5782471984.

The spelling of 172416445 in words is "one hundred seventy-two million, four hundred sixteen thousand, four hundred forty-five".