172608249 has 8 divisors (see below), whose sum is σ = 251066592. Its totient is φ = 104611040.

The previous prime is 172608239. The next prime is 172608253. The reversal of 172608249 is 942806271.

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 172608249 - 2⁸ = 172607993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172608229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2615244 + ... + 2615309.

It is an arithmetic number, because the mean of its divisors is an integer number (31383324).

Almost surely, 2^172608249 is an apocalyptic number.

It is an amenable number.

172608249 is a deficient number, since it is larger than the sum of its proper divisors (78458343).

172608249 is a wasteful number, since it uses less digits than its factorization.

172608249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5230567.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 172608249 is about 13138.0458592593. The cubic root of 172608249 is about 556.7845584788.

The spelling of 172608249 in words is "one hundred seventy-two million, six hundred eight thousand, two hundred forty-nine".