122559 has 4 divisors (see below), whose sum is σ = 163416. Its totient is φ = 81704.

The previous prime is 122557. The next prime is 122561. The reversal of 122559 is 955221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 955221 = 3 ⋅318407.

It is an interprime number because it is at equal distance from previous prime (122557) and next prime (122561).

It is a cyclic number.

It is not a de Polignac number, because 122559 - 2¹ = 122557 is a prime.

It is a D-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 (122557) 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, 20424 + ... + 20429.

It is an arithmetic number, because the mean of its divisors is an integer number (40854).

2¹²²⁵⁵⁹ is an apocalyptic number.

122559 is a deficient number, since it is larger than the sum of its proper divisors (40857).

122559 is an equidigital number, since it uses as much as digits as its factorization.

122559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40856.

The product of its digits is 900, while the sum is 24.

The square root of 122559 is about 350.0842755680. The cubic root of 122559 is about 49.6723914746.

The spelling of 122559 in words is "one hundred twenty-two thousand, five hundred fifty-nine".