122286397 has 2 divisors, whose sum is σ = 122286398. Its totient is φ = 122286396.

The previous prime is 122286361. The next prime is 122286431. The reversal of 122286397 is 793682221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122190916 + 95481 = 11054^2 + 309^2 .

It is an emirp because it is prime and its reverse (793682221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122286397 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 (122206397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61143198 + 61143199.

It is an arithmetic number, because the mean of its divisors is an integer number (61143199).

Almost surely, 2^122286397 is an apocalyptic number.

It is an amenable number.

122286397 is a deficient number, since it is larger than the sum of its proper divisors (1).

122286397 is an equidigital number, since it uses as much as digits as its factorization.

122286397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 40.

The square root of 122286397 is about 11058.3180004918. The cubic root of 122286397 is about 496.3553604223.

The spelling of 122286397 in words is "one hundred twenty-two million, two hundred eighty-six thousand, three hundred ninety-seven".