172234401 has 4 divisors (see below), whose sum is σ = 229645872. Its totient is φ = 114822932.

The previous prime is 172234343. The next prime is 172234417. The reversal of 172234401 is 104432271.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 172234401 - 2⁹ = 172233889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172234501) 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, 28705731 + ... + 28705736.

It is an arithmetic number, because the mean of its divisors is an integer number (57411468).

Almost surely, 2^172234401 is an apocalyptic number.

It is an amenable number.

172234401 is a deficient number, since it is larger than the sum of its proper divisors (57411471).

172234401 is an equidigital number, since it uses as much as digits as its factorization.

172234401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57411470.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 172234401 is about 13123.8104603808. The cubic root of 172234401 is about 556.3822925508.

Adding to 172234401 its reverse (104432271), we get a palindrome (276666672).

The spelling of 172234401 in words is "one hundred seventy-two million, two hundred thirty-four thousand, four hundred one".