122257843 has 2 divisors, whose sum is σ = 122257844. Its totient is φ = 122257842.

The previous prime is 122257819. The next prime is 122257873. The reversal of 122257843 is 348752221.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (348752221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122257843 - 2¹³ = 122249651 is a prime.

It is a zygodrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 122257799 and 122257808.

It is not a weakly prime, because it can be changed into another prime (122257873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61128921 + 61128922.

It is an arithmetic number, because the mean of its divisors is an integer number (61128922).

Almost surely, 2^122257843 is an apocalyptic number.

122257843 is a deficient number, since it is larger than the sum of its proper divisors (1).

122257843 is an equidigital number, since it uses as much as digits as its factorization.

122257843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 34.

The square root of 122257843 is about 11057.0268607795. The cubic root of 122257843 is about 496.3167242518.

The spelling of 122257843 in words is "one hundred twenty-two million, two hundred fifty-seven thousand, eight hundred forty-three".