122699867 has 4 divisors (see below), whose sum is σ = 122836056. Its totient is φ = 122563680.

The previous prime is 122699851. The next prime is 122699879. The reversal of 122699867 is 768996221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122699867 - 2⁴ = 122699851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122699827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66734 + ... + 68547.

It is an arithmetic number, because the mean of its divisors is an integer number (30709014).

Almost surely, 2^122699867 is an apocalyptic number.

122699867 is a deficient number, since it is larger than the sum of its proper divisors (136189).

122699867 is an equidigital number, since it uses as much as digits as its factorization.

122699867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136188.

The product of its digits is 653184, while the sum is 50.

The square root of 122699867 is about 11076.9972014080. The cubic root of 122699867 is about 496.9141502424.

The spelling of 122699867 in words is "one hundred twenty-two million, six hundred ninety-nine thousand, eight hundred sixty-seven".