173421122 has 16 divisors (see below), whose sum is σ = 297760320. Its totient is φ = 74206608.

The previous prime is 173421089. The next prime is 173421139. The reversal of 173421122 is 221124371.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173 + ... + 18624.

It is an arithmetic number, because the mean of its divisors is an integer number (18610020).

Almost surely, 2^173421122 is an apocalyptic number.

173421122 is a deficient number, since it is larger than the sum of its proper divisors (124339198).

173421122 is a wasteful number, since it uses less digits than its factorization.

173421122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19465.

The product of its digits is 672, while the sum is 23.

The square root of 173421122 is about 13168.9453639994. The cubic root of 173421122 is about 557.6572215051.

Adding to 173421122 its reverse (221124371), we get a palindrome (394545493).

The spelling of 173421122 in words is "one hundred seventy-three million, four hundred twenty-one thousand, one hundred twenty-two".