122805629 has 2 divisors, whose sum is σ = 122805630. Its totient is φ = 122805628.

The previous prime is 122805593. The next prime is 122805673. The reversal of 122805629 is 926508221.

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., 121992025 + 813604 = 11045^2 + 902^2 .

It is an emirp because it is prime and its reverse (926508221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122805629 - 2¹² = 122801533 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122805029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61402814 + 61402815.

It is an arithmetic number, because the mean of its divisors is an integer number (61402815).

Almost surely, 2^122805629 is an apocalyptic number.

It is an amenable number.

122805629 is a deficient number, since it is larger than the sum of its proper divisors (1).

122805629 is an equidigital number, since it uses as much as digits as its factorization.

122805629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 122805629 is about 11081.7701203373. The cubic root of 122805629 is about 497.0568821049.

The spelling of 122805629 in words is "one hundred twenty-two million, eight hundred five thousand, six hundred twenty-nine".