172107323 has 2 divisors, whose sum is σ = 172107324. Its totient is φ = 172107322.

The previous prime is 172107293. The next prime is 172107347. The reversal of 172107323 is 323701271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172107323 - 2⁶ = 172107259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172107292 and 172107301.

It is not a weakly prime, because it can be changed into another prime (172104323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86053661 + 86053662.

It is an arithmetic number, because the mean of its divisors is an integer number (86053662).

Almost surely, 2^172107323 is an apocalyptic number.

172107323 is a deficient number, since it is larger than the sum of its proper divisors (1).

172107323 is an equidigital number, since it uses as much as digits as its factorization.

172107323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 172107323 is about 13118.9680615512. The cubic root of 172107323 is about 556.2454222070.

Adding to 172107323 its reverse (323701271), we get a palindrome (495808594).

The spelling of 172107323 in words is "one hundred seventy-two million, one hundred seven thousand, three hundred twenty-three".