122796209 has 4 divisors (see below), whose sum is σ = 122823540. Its totient is φ = 122768880.

The previous prime is 122796203. The next prime is 122796211. The reversal of 122796209 is 902697221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 902697221 = 233 ⋅3874237.

It can be written as a sum of positive squares in 2 ways, for example, as 33965584 + 88830625 = 5828^2 + 9425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122796209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122796203) 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, 5162 + ... + 16499.

It is an arithmetic number, because the mean of its divisors is an integer number (30705885).

Almost surely, 2^122796209 is an apocalyptic number.

It is an amenable number.

122796209 is a deficient number, since it is larger than the sum of its proper divisors (27331).

122796209 is an equidigital number, since it uses as much as digits as its factorization.

122796209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27330.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 122796209 is about 11081.3450898345. The cubic root of 122796209 is about 497.0441726019.

The spelling of 122796209 in words is "one hundred twenty-two million, seven hundred ninety-six thousand, two hundred nine".