122381863 has 4 divisors (see below), whose sum is σ = 122437440. Its totient is φ = 122326288.

The previous prime is 122381849. The next prime is 122381881. The reversal of 122381863 is 368183221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368183221 = 7 ⋅52597603.

It is a cyclic number.

It is not a de Polignac number, because 122381863 - 2²¹ = 120284711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122381803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24343 + ... + 28936.

It is an arithmetic number, because the mean of its divisors is an integer number (30609360).

Almost surely, 2^122381863 is an apocalyptic number.

122381863 is a deficient number, since it is larger than the sum of its proper divisors (55577).

122381863 is an equidigital number, since it uses as much as digits as its factorization.

122381863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55576.

The product of its digits is 13824, while the sum is 34.

The square root of 122381863 is about 11062.6336376109. The cubic root of 122381863 is about 496.4844909894.

The spelling of 122381863 in words is "one hundred twenty-two million, three hundred eighty-one thousand, eight hundred sixty-three".