122734421 has 2 divisors, whose sum is σ = 122734422. Its totient is φ = 122734420.

The previous prime is 122734399. The next prime is 122734453. The reversal of 122734421 is 124437221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114725521 + 8008900 = 10711^2 + 2830^2 .

It is an emirp because it is prime and its reverse (124437221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122734421 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122734021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61367210 + 61367211.

It is an arithmetic number, because the mean of its divisors is an integer number (61367211).

Almost surely, 2^122734421 is an apocalyptic number.

It is an amenable number.

122734421 is a deficient number, since it is larger than the sum of its proper divisors (1).

122734421 is an equidigital number, since it uses as much as digits as its factorization.

122734421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 26.

The square root of 122734421 is about 11078.5568103431. The cubic root of 122734421 is about 496.9607918578.

The spelling of 122734421 in words is "one hundred twenty-two million, seven hundred thirty-four thousand, four hundred twenty-one".