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122225 = 524889
BaseRepresentation
bin11101110101110001
320012122212
4131311301
512402400
62341505
71016225
oct356561
9205585
10122225
1183914
125a895
134382c
1432785
1526335
hex1dd71

122225 has 6 divisors (see below), whose sum is σ = 151590. Its totient is φ = 97760.

The previous prime is 122219. The next prime is 122231. The reversal of 122225 is 522221.

It is an interprime number because it is at equal distance from previous prime (122219) and next prime (122231).

It can be written as a sum of positive squares in 3 ways, for example, as 14641 + 107584 = 121^2 + 328^2 .

It is not a de Polignac number, because 122225 - 24 = 122209 is a prime.

It is a Curzon number.

It is a plaindrome in base 10.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 2420 + ... + 2469.

It is an arithmetic number, because the mean of its divisors is an integer number (25265).

2122225 is an apocalyptic number.

It is an amenable number.

122225 is a deficient number, since it is larger than the sum of its proper divisors (29365).

122225 is an equidigital number, since it uses as much as digits as its factorization.

122225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4899 (or 4894 counting only the distinct ones).

The product of its digits is 80, while the sum is 14.

The square root of 122225 is about 349.6069221283. The cubic root of 122225 is about 49.6272277233.

Adding to 122225 its reverse (522221), we get a palindrome (644446).

The spelling of 122225 in words is "one hundred twenty-two thousand, two hundred twenty-five".

Divisors: 1 5 25 4889 24445 122225