173988245 has 8 divisors (see below), whose sum is σ = 214428984. Its totient is φ = 135428544.

The previous prime is 173988239. The next prime is 173988253. The reversal of 173988245 is 542889371.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 67010596 + 106977649 = 8186^2 + 10343^2 .

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 173988245 - 2⁶ = 173988181 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 173988245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470054 + ... + 470423.

It is an arithmetic number, because the mean of its divisors is an integer number (26803623).

Almost surely, 2^173988245 is an apocalyptic number.

It is an amenable number.

173988245 is a deficient number, since it is larger than the sum of its proper divisors (40440739).

173988245 is an equidigital number, since it uses as much as digits as its factorization.

173988245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940519.

The product of its digits is 483840, while the sum is 47.

The square root of 173988245 is about 13190.4603786221. The cubic root of 173988245 is about 558.2644449549.

The spelling of 173988245 in words is "one hundred seventy-three million, nine hundred eighty-eight thousand, two hundred forty-five".