22542173 has 2 divisors, whose sum is σ = 22542174. Its totient is φ = 22542172.

The previous prime is 22542137. The next prime is 22542199. The reversal of 22542173 is 37124522.

Together with previous prime (22542137) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (22542199) can be obtained adding 22542173 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21548164 + 994009 = 4642^2 + 997^2 .

It is a cyclic number.

It is not a de Polignac number, because 22542173 - 2⁶ = 22542109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22542103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11271086 + 11271087.

It is an arithmetic number, because the mean of its divisors is an integer number (11271087).

Almost surely, 2^22542173 is an apocalyptic number.

It is an amenable number.

22542173 is a deficient number, since it is larger than the sum of its proper divisors (1).

22542173 is an equidigital number, since it uses as much as digits as its factorization.

22542173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 26.

The square root of 22542173 is about 4747.8598336514. The cubic root of 22542173 is about 282.4870821879.

Adding to 22542173 its reverse (37124522), we get a palindrome (59666695).

The spelling of 22542173 in words is "twenty-two million, five hundred forty-two thousand, one hundred seventy-three".