122636533 has 2 divisors, whose sum is σ = 122636534. Its totient is φ = 122636532.

The previous prime is 122636531. The next prime is 122636543. The reversal of 122636533 is 335636221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109977169 + 12659364 = 10487^2 + 3558^2 .

It is a cyclic number.

It is not a de Polignac number, because 122636533 - 2¹ = 122636531 is a prime.

Together with 122636531, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 122636495 and 122636504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122636531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61318266 + 61318267.

It is an arithmetic number, because the mean of its divisors is an integer number (61318267).

Almost surely, 2^122636533 is an apocalyptic number.

It is an amenable number.

122636533 is a deficient number, since it is larger than the sum of its proper divisors (1).

122636533 is an equidigital number, since it uses as much as digits as its factorization.

122636533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 31.

The square root of 122636533 is about 11074.1380251467. The cubic root of 122636533 is about 496.8286381225.

The spelling of 122636533 in words is "one hundred twenty-two million, six hundred thirty-six thousand, five hundred thirty-three".