122697643 has 2 divisors, whose sum is σ = 122697644. Its totient is φ = 122697642.

The previous prime is 122697623. The next prime is 122697691. The reversal of 122697643 is 346796221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122697643 - 2⁹ = 122697131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122697596 and 122697605.

It is not a weakly prime, because it can be changed into another prime (122697623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61348821 + 61348822.

It is an arithmetic number, because the mean of its divisors is an integer number (61348822).

Almost surely, 2^122697643 is an apocalyptic number.

122697643 is a deficient number, since it is larger than the sum of its proper divisors (1).

122697643 is an equidigital number, since it uses as much as digits as its factorization.

122697643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 122697643 is about 11076.8968127360. The cubic root of 122697643 is about 496.9111479470.

The spelling of 122697643 in words is "one hundred twenty-two million, six hundred ninety-seven thousand, six hundred forty-three".