122863771 has 4 divisors (see below), whose sum is σ = 125721112. Its totient is φ = 120006432.

The previous prime is 122863751. The next prime is 122863787. The reversal of 122863771 is 177368221.

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 122863771 - 2⁵ = 122863739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122863771.

It is not an unprimeable number, because it can be changed into a prime (122863711) 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, 1428606 + ... + 1428691.

It is an arithmetic number, because the mean of its divisors is an integer number (31430278).

Almost surely, 2^122863771 is an apocalyptic number.

122863771 is a deficient number, since it is larger than the sum of its proper divisors (2857341).

122863771 is an equidigital number, since it uses as much as digits as its factorization.

122863771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857340.

The product of its digits is 28224, while the sum is 37.

The square root of 122863771 is about 11084.3931272758. The cubic root of 122863771 is about 497.1353131503.

The spelling of 122863771 in words is "one hundred twenty-two million, eight hundred sixty-three thousand, seven hundred seventy-one".