122365 has 4 divisors (see below), whose sum is σ = 146844. Its totient is φ = 97888.

The previous prime is 122363. The next prime is 122387. The reversal of 122365 is 563221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 563221 = 311 ⋅1811.

It can be written as a sum of positive squares in 2 ways, for example, as 71289 + 51076 = 267^2 + 226^2 .

It is a cyclic number.

It is not a de Polignac number, because 122365 - 2¹ = 122363 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122363) 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, 12232 + ... + 12241.

It is an arithmetic number, because the mean of its divisors is an integer number (36711).

2¹²²³⁶⁵ is an apocalyptic number.

It is an amenable number.

122365 is a deficient number, since it is larger than the sum of its proper divisors (24479).

122365 is an equidigital number, since it uses as much as digits as its factorization.

122365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24478.

The product of its digits is 360, while the sum is 19.

The square root of 122365 is about 349.8070896937. The cubic root of 122365 is about 49.6461686405.

Adding to 122365 its reverse (563221), we get a palindrome (685586).

It can be divided in two parts, 1 and 22365, that added together give a triangular number (22366 = T₂₁₁).

The spelling of 122365 in words is "one hundred twenty-two thousand, three hundred sixty-five".