172351223 has 8 divisors (see below), whose sum is σ = 197915520. Its totient is φ = 148436280.

The previous prime is 172351199. The next prime is 172351237. The reversal of 172351223 is 322153271.

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 172351223 - 2⁸ = 172350967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172351192 and 172351201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172351523) 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, 412115 + ... + 412532.

It is an arithmetic number, because the mean of its divisors is an integer number (24739440).

Almost surely, 2^172351223 is an apocalyptic number.

172351223 is a deficient number, since it is larger than the sum of its proper divisors (25564297).

172351223 is a wasteful number, since it uses less digits than its factorization.

172351223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824677.

The product of its digits is 2520, while the sum is 26.

The square root of 172351223 is about 13128.2604712125. The cubic root of 172351223 is about 556.5080572101.

The spelling of 172351223 in words is "one hundred seventy-two million, three hundred fifty-one thousand, two hundred twenty-three".