122564347 has 2 divisors, whose sum is σ = 122564348. Its totient is φ = 122564346.

The previous prime is 122564333. The next prime is 122564369. The reversal of 122564347 is 743465221.

It is a weak prime.

It is an emirp because it is prime and its reverse (743465221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122564347 is a prime.

It is not a weakly prime, because it can be changed into another prime (122564317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61282173 + 61282174.

It is an arithmetic number, because the mean of its divisors is an integer number (61282174).

Almost surely, 2^122564347 is an apocalyptic number.

122564347 is a deficient number, since it is larger than the sum of its proper divisors (1).

122564347 is an equidigital number, since it uses as much as digits as its factorization.

122564347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 34.

The square root of 122564347 is about 11070.8783301055. The cubic root of 122564347 is about 496.7311383257.

The spelling of 122564347 in words is "one hundred twenty-two million, five hundred sixty-four thousand, three hundred forty-seven".