122765 has 8 divisors (see below), whose sum is σ = 151008. Its totient is φ = 95760.

The previous prime is 122761. The next prime is 122777. The reversal of 122765 is 567221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122765 - 2² = 122761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71 + ... + 500.

It is an arithmetic number, because the mean of its divisors is an integer number (18876).

2¹²²⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

122765 is a deficient number, since it is larger than the sum of its proper divisors (28243).

122765 is an equidigital number, since it uses as much as digits as its factorization.

122765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619.

The product of its digits is 840, while the sum is 23.

The square root of 122765 is about 350.3783669121. The cubic root of 122765 is about 49.7002060645.

Adding to 122765 its reverse (567221), we get a palindrome (689986).

The spelling of 122765 in words is "one hundred twenty-two thousand, seven hundred sixty-five".