122785043 has 4 divisors (see below), whose sum is σ = 127019040. Its totient is φ = 118551048.

The previous prime is 122785007. The next prime is 122785073. The reversal of 122785043 is 340587221.

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 122785043 - 2⁶ = 122784979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122785073) 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 3 ways as a sum of consecutive naturals, for example, 2116955 + ... + 2117012.

It is an arithmetic number, because the mean of its divisors is an integer number (31754760).

Almost surely, 2^122785043 is an apocalyptic number.

122785043 is a deficient number, since it is larger than the sum of its proper divisors (4233997).

122785043 is an equidigital number, since it uses as much as digits as its factorization.

122785043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4233996.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 122785043 is about 11080.8412586771. The cubic root of 122785043 is about 497.0291065465.

The spelling of 122785043 in words is "one hundred twenty-two million, seven hundred eighty-five thousand, forty-three".