122631365 has 4 divisors (see below), whose sum is σ = 147157644. Its totient is φ = 98105088.

The previous prime is 122631361. The next prime is 122631367. The reversal of 122631365 is 563136221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 563136221 = 9859 ⋅57119.

It can be written as a sum of positive squares in 2 ways, for example, as 96845281 + 25786084 = 9841^2 + 5078^2 .

It is a cyclic number.

It is not a de Polignac number, because 122631365 - 2² = 122631361 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 (122631361) 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, 12263132 + ... + 12263141.

It is an arithmetic number, because the mean of its divisors is an integer number (36789411).

Almost surely, 2^122631365 is an apocalyptic number.

It is an amenable number.

122631365 is a deficient number, since it is larger than the sum of its proper divisors (24526279).

122631365 is an equidigital number, since it uses as much as digits as its factorization.

122631365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24526278.

The product of its digits is 6480, while the sum is 29.

The square root of 122631365 is about 11073.9046862432. The cubic root of 122631365 is about 496.8216591078.

Adding to 122631365 its reverse (563136221), we get a palindrome (685767586).

The spelling of 122631365 in words is "one hundred twenty-two million, six hundred thirty-one thousand, three hundred sixty-five".