118422173 has 2 divisors, whose sum is σ = 118422174. Its totient is φ = 118422172.

The previous prime is 118422169. The next prime is 118422179. The reversal of 118422173 is 371224811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104080804 + 14341369 = 10202^2 + 3787^2 .

It is a cyclic number.

It is not a de Polignac number, because 118422173 - 2² = 118422169 is a prime.

It is a super-2 number, since 2×118422173² = 28047622116083858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118422179) by changing a digit.

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 as a sum of consecutive naturals, namely, 59211086 + 59211087.

It is an arithmetic number, because the mean of its divisors is an integer number (59211087).

Almost surely, 2^118422173 is an apocalyptic number.

It is an amenable number.

118422173 is a deficient number, since it is larger than the sum of its proper divisors (1).

118422173 is an equidigital number, since it uses as much as digits as its factorization.

118422173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 29.

The square root of 118422173 is about 10882.1952289049. The cubic root of 118422173 is about 491.0710612635.

Adding to 118422173 its reverse (371224811), we get a palindrome (489646984).

The spelling of 118422173 in words is "one hundred eighteen million, four hundred twenty-two thousand, one hundred seventy-three".