122243865 has 8 divisors (see below), whose sum is σ = 195590208. Its totient is φ = 65196720.

The previous prime is 122243861. The next prime is 122243879. The reversal of 122243865 is 568342221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122243865 - 2² = 122243861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122243861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4074781 + ... + 4074810.

It is an arithmetic number, because the mean of its divisors is an integer number (24448776).

Almost surely, 2^122243865 is an apocalyptic number.

122243865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122243865 is a deficient number, since it is larger than the sum of its proper divisors (73346343).

122243865 is an equidigital number, since it uses as much as digits as its factorization.

122243865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8149599.

The product of its digits is 23040, while the sum is 33.

The square root of 122243865 is about 11056.3947559772. The cubic root of 122243865 is about 496.2978085476.

The spelling of 122243865 in words is "one hundred twenty-two million, two hundred forty-three thousand, eight hundred sixty-five".