220454173 has 2 divisors, whose sum is σ = 220454174. Its totient is φ = 220454172.

The previous prime is 220454167. The next prime is 220454191. The reversal of 220454173 is 371454022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180042724 + 40411449 = 13418^2 + 6357^2 .

It is a cyclic number.

It is not a de Polignac number, because 220454173 - 2⁵ = 220454141 is a prime.

It is a super-2 number, since 2×220454173² = 97200084786227858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220454123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110227086 + 110227087.

It is an arithmetic number, because the mean of its divisors is an integer number (110227087).

Almost surely, 2^220454173 is an apocalyptic number.

It is an amenable number.

220454173 is a deficient number, since it is larger than the sum of its proper divisors (1).

220454173 is an equidigital number, since it uses as much as digits as its factorization.

220454173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 220454173 is about 14847.6992493787. The cubic root of 220454173 is about 604.0962057841.

The spelling of 220454173 in words is "two hundred twenty million, four hundred fifty-four thousand, one hundred seventy-three".