172034117 has 4 divisors (see below), whose sum is σ = 172061100. Its totient is φ = 172007136.

The previous prime is 172034111. The next prime is 172034129. The reversal of 172034117 is 711430271.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 711430271 = 157 ⋅4531403.

It can be written as a sum of positive squares in 2 ways, for example, as 129640996 + 42393121 = 11386^2 + 6511^2 .

It is a cyclic number.

It is not a de Polignac number, because 172034117 - 2⁸ = 172033861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172034111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2009 + ... + 18657.

It is an arithmetic number, because the mean of its divisors is an integer number (43015275).

Almost surely, 2^172034117 is an apocalyptic number.

It is an amenable number.

172034117 is a deficient number, since it is larger than the sum of its proper divisors (26983).

172034117 is a wasteful number, since it uses less digits than its factorization.

172034117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26982.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 172034117 is about 13116.1776825415. The cubic root of 172034117 is about 556.1665445305.

Adding to 172034117 its reverse (711430271), we get a palindrome (883464388).

The spelling of 172034117 in words is "one hundred seventy-two million, thirty-four thousand, one hundred seventeen".