172113326 has 32 divisors (see below), whose sum is σ = 329736960. Its totient is φ = 65419200.

The previous prime is 172113323. The next prime is 172113329. The reversal of 172113326 is 623311271.

172113326 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (172113323) and next prime (172113329).

It is a junction number, because it is equal to n+sod(n) for n = 172113295 and 172113304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172113323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7316 + ... + 19943.

It is an arithmetic number, because the mean of its divisors is an integer number (10304280).

Almost surely, 2^172113326 is an apocalyptic number.

172113326 is a deficient number, since it is larger than the sum of its proper divisors (157623634).

172113326 is a wasteful number, since it uses less digits than its factorization.

172113326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27320.

The product of its digits is 1512, while the sum is 26.

The square root of 172113326 is about 13119.1968504173. The cubic root of 172113326 is about 556.2518893005.

Adding to 172113326 its reverse (623311271), we get a palindrome (795424597).

The spelling of 172113326 in words is "one hundred seventy-two million, one hundred thirteen thousand, three hundred twenty-six".