122742752 has 48 divisors (see below), whose sum is σ = 264902400. Its totient is φ = 55520640.

The previous prime is 122742713. The next prime is 122742779. The reversal of 122742752 is 257247221.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83399 + ... + 84857.

It is an arithmetic number, because the mean of its divisors is an integer number (5518800).

Almost surely, 2^122742752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122742752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132451200).

122742752 is an abundant number, since it is smaller than the sum of its proper divisors (142159648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122742752 is a wasteful number, since it uses less digits than its factorization.

122742752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719 (or 1711 counting only the distinct ones).

The product of its digits is 15680, while the sum is 32.

The square root of 122742752 is about 11078.9328005905. The cubic root of 122742752 is about 496.9720358827.

Adding to 122742752 its reverse (257247221), we get a palindrome (379989973).

The spelling of 122742752 in words is "one hundred twenty-two million, seven hundred forty-two thousand, seven hundred fifty-two".