122378065 has 4 divisors (see below), whose sum is σ = 146853684. Its totient is φ = 97902448.

The previous prime is 122378063. The next prime is 122378119. The reversal of 122378065 is 560873221.

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: 560873221 = 5939 ⋅94439.

It can be written as a sum of positive squares in 2 ways, for example, as 49224256 + 73153809 = 7016^2 + 8553^2 .

It is a cyclic number.

It is not a de Polignac number, because 122378065 - 2¹ = 122378063 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 122378065.

It is not an unprimeable number, because it can be changed into a prime (122378063) 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, 12237802 + ... + 12237811.

It is an arithmetic number, because the mean of its divisors is an integer number (36713421).

Almost surely, 2^122378065 is an apocalyptic number.

It is an amenable number.

122378065 is a deficient number, since it is larger than the sum of its proper divisors (24475619).

122378065 is an equidigital number, since it uses as much as digits as its factorization.

122378065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24475618.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 122378065 is about 11062.4619773358. The cubic root of 122378065 is about 496.4793549680.

It can be divided in two parts, 12237 and 8065, that added together give a palindrome (20302).

The spelling of 122378065 in words is "one hundred twenty-two million, three hundred seventy-eight thousand, sixty-five".