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122423 = 717489
BaseRepresentation
bin11101111000110111
320012221012
4131320313
512404143
62342435
71016630
oct357067
9205835
10122423
1183a84
125aa1b
1343952
1432887
1526418
hex1de37

122423 has 4 divisors (see below), whose sum is σ = 139920. Its totient is φ = 104928.

The previous prime is 122401. The next prime is 122443. The reversal of 122423 is 324221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324221 = 349929.

It is a cyclic number.

It is not a de Polignac number, because 122423 - 28 = 122167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122398 and 122407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122443) 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, 8738 + ... + 8751.

It is an arithmetic number, because the mean of its divisors is an integer number (34980).

2122423 is an apocalyptic number.

122423 is a deficient number, since it is larger than the sum of its proper divisors (17497).

122423 is an equidigital number, since it uses as much as digits as its factorization.

122423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17496.

The product of its digits is 96, while the sum is 14.

The square root of 122423 is about 349.8899827089. The cubic root of 122423 is about 49.6540113596.

Adding to 122423 its reverse (324221), we get a palindrome (446644).

It can be divided in two parts, 122 and 423, that added together give a palindrome (545).

The spelling of 122423 in words is "one hundred twenty-two thousand, four hundred twenty-three", and thus it is an iban number.

Divisors: 1 7 17489 122423