122447 has 4 divisors (see below), whose sum is σ = 131880. Its totient is φ = 113016.

The previous prime is 122443. The next prime is 122449. The reversal of 122447 is 744221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122447 - 2² = 122443 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

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, 4697 + ... + 4722.

It is an arithmetic number, because the mean of its divisors is an integer number (32970).

2¹²²⁴⁴⁷ is an apocalyptic number.

122447 is a deficient number, since it is larger than the sum of its proper divisors (9433).

122447 is an equidigital number, since it uses as much as digits as its factorization.

122447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9432.

The product of its digits is 448, while the sum is 20.

The square root of 122447 is about 349.9242775230. The cubic root of 122447 is about 49.6572558981.

Adding to 122447 its reverse (744221), we get a palindrome (866668).

The spelling of 122447 in words is "one hundred twenty-two thousand, four hundred forty-seven", and thus it is an iban number.