122643849 has 8 divisors (see below), whose sum is σ = 163989792. Its totient is φ = 81530240.

The previous prime is 122643827. The next prime is 122643853. The reversal of 122643849 is 948346221.

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

It is a cyclic number.

It is not a de Polignac number, because 122643849 - 2²³ = 114255241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122643809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56847 + ... + 58964.

It is an arithmetic number, because the mean of its divisors is an integer number (20498724).

Almost surely, 2^122643849 is an apocalyptic number.

It is an amenable number.

122643849 is a deficient number, since it is larger than the sum of its proper divisors (41345943).

122643849 is a wasteful number, since it uses less digits than its factorization.

122643849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116167.

The product of its digits is 82944, while the sum is 39.

The square root of 122643849 is about 11074.4683393832. The cubic root of 122643849 is about 496.8385175223.

The spelling of 122643849 in words is "one hundred twenty-two million, six hundred forty-three thousand, eight hundred forty-nine".