172603223 has 8 divisors (see below), whose sum is σ = 189835968. Its totient is φ = 155935584.

The previous prime is 172603219. The next prime is 172603237. The reversal of 172603223 is 322306271.

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 172603223 - 2² = 172603219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172603192 and 172603201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172603283) 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, 140636 + ... + 141857.

It is an arithmetic number, because the mean of its divisors is an integer number (23729496).

Almost surely, 2^172603223 is an apocalyptic number.

172603223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

172603223 is a deficient number, since it is larger than the sum of its proper divisors (17232745).

172603223 is a wasteful number, since it uses less digits than its factorization.

172603223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282553.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 172603223 is about 13137.8545813234. The cubic root of 172603223 is about 556.7791542829.

Adding to 172603223 its reverse (322306271), we get a palindrome (494909494).

The spelling of 172603223 in words is "one hundred seventy-two million, six hundred three thousand, two hundred twenty-three".