122789782 has 8 divisors (see below), whose sum is σ = 184369536. Its totient is φ = 61333272.

The previous prime is 122789773. The next prime is 122789783. The reversal of 122789782 is 287987221.

It is a happy number.

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

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122789783) 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, 28278 + ... + 32329.

It is an arithmetic number, because the mean of its divisors is an integer number (23046192).

Almost surely, 2^122789782 is an apocalyptic number.

122789782 is a deficient number, since it is larger than the sum of its proper divisors (61579754).

122789782 is a wasteful number, since it uses less digits than its factorization.

122789782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61622.

The product of its digits is 225792, while the sum is 46.

The square root of 122789782 is about 11081.0550941686. The cubic root of 122789782 is about 497.0355008938.

The spelling of 122789782 in words is "one hundred twenty-two million, seven hundred eighty-nine thousand, seven hundred eighty-two".