172424122 has 8 divisors (see below), whose sum is σ = 278531316. Its totient is φ = 79580352.

The previous prime is 172424113. The next prime is 172424159. The reversal of 172424122 is 221424271.

It can be written as a sum of positive squares in 2 ways, for example, as 172423161 + 961 = 13131^2 + 31^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3315823 + ... + 3315874.

Almost surely, 2^172424122 is an apocalyptic number.

172424122 is a deficient number, since it is larger than the sum of its proper divisors (106107194).

172424122 is a wasteful number, since it uses less digits than its factorization.

172424122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6631712.

The product of its digits is 1792, while the sum is 25.

The square root of 172424122 is about 13131.0365927447. The cubic root of 172424122 is about 556.5865077944.

Adding to 172424122 its reverse (221424271), we get a palindrome (393848393).

The spelling of 172424122 in words is "one hundred seventy-two million, four hundred twenty-four thousand, one hundred twenty-two".