122735320537 has 4 divisors (see below), whose sum is σ = 123003888436. Its totient is φ = 122466752640.

The previous prime is 122735320517. The next prime is 122735320567. The reversal of 122735320537 is 735023537221.

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: 735023537221 = 19777 ⋅37165573.

It can be written as a sum of positive squares in 2 ways, for example, as 102576716176 + 20158604361 = 320276^2 + 141981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122735320537 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 122735320537.

It is not an unprimeable number, because it can be changed into a prime (122735320517) 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, 134283264 + ... + 134284177.

It is an arithmetic number, because the mean of its divisors is an integer number (30750972109).

Almost surely, 2^122735320537 is an apocalyptic number.

It is an amenable number.

122735320537 is a deficient number, since it is larger than the sum of its proper divisors (268567899).

122735320537 is an equidigital number, since it uses as much as digits as its factorization.

122735320537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268567898.

The product of its (nonzero) digits is 264600, while the sum is 40.

Adding to 122735320537 its reverse (735023537221), we get a palindrome (857758857758).

The spelling of 122735320537 in words is "one hundred twenty-two billion, seven hundred thirty-five million, three hundred twenty thousand, five hundred thirty-seven".