172193233 has 2 divisors, whose sum is σ = 172193234. Its totient is φ = 172193232.

The previous prime is 172193171. The next prime is 172193243. The reversal of 172193233 is 332391271.

It is a happy number.

172193233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128527569 + 43665664 = 11337^2 + 6608^2 .

It is an emirp because it is prime and its reverse (332391271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172193233 - 2¹⁷ = 172062161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172193195 and 172193204.

It is not a weakly prime, because it can be changed into another prime (172193243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86096616 + 86096617.

It is an arithmetic number, because the mean of its divisors is an integer number (86096617).

Almost surely, 2^172193233 is an apocalyptic number.

It is an amenable number.

172193233 is a deficient number, since it is larger than the sum of its proper divisors (1).

172193233 is an equidigital number, since it uses as much as digits as its factorization.

172193233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 31.

The square root of 172193233 is about 13122.2419197331. The cubic root of 172193233 is about 556.3379596121.

The spelling of 172193233 in words is "one hundred seventy-two million, one hundred ninety-three thousand, two hundred thirty-three".