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122017 = 717431
BaseRepresentation
bin11101110010100001
320012101011
4131302201
512401032
62340521
71015510
oct356241
9205334
10122017
1183745
125a741
13436cc
1432677
1526247
hex1dca1

122017 has 4 divisors (see below), whose sum is σ = 139456. Its totient is φ = 104580.

The previous prime is 122011. The next prime is 122021. The reversal of 122017 is 710221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 122017 - 27 = 121889 is a prime.

It is a Duffinian number.

122017 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 121988 and 122006.

It is not an unprimeable number, because it can be changed into a prime (122011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8709 + ... + 8722.

It is an arithmetic number, because the mean of its divisors is an integer number (34864).

2122017 is an apocalyptic number.

It is an amenable number.

122017 is a deficient number, since it is larger than the sum of its proper divisors (17439).

122017 is an equidigital number, since it uses as much as digits as its factorization.

122017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17438.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 122017 is about 349.3093185130. The cubic root of 122017 is about 49.5990602059.

Adding to 122017 its reverse (710221), we get a palindrome (832238).

The spelling of 122017 in words is "one hundred twenty-two thousand, seventeen", and thus it is an iban number.

Divisors: 1 7 17431 122017