122668387 has 2 divisors, whose sum is σ = 122668388. Its totient is φ = 122668386.

The previous prime is 122668321. The next prime is 122668459. The reversal of 122668387 is 783866221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122668387 is a prime.

It is not a weakly prime, because it can be changed into another prime (122660387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61334193 + 61334194.

It is an arithmetic number, because the mean of its divisors is an integer number (61334194).

Almost surely, 2^122668387 is an apocalyptic number.

122668387 is a deficient number, since it is larger than the sum of its proper divisors (1).

122668387 is an equidigital number, since it uses as much as digits as its factorization.

122668387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 43.

The square root of 122668387 is about 11075.5761475419. The cubic root of 122668387 is about 496.8716503446.

The spelling of 122668387 in words is "one hundred twenty-two million, six hundred sixty-eight thousand, three hundred eighty-seven".