122748736 has 56 divisors (see below), whose sum is σ = 268248384. Its totient is φ = 55265280.

The previous prime is 122748719. The next prime is 122748737. The reversal of 122748736 is 637847221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122748737) 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, 78781 + ... + 80323.

Almost surely, 2^122748736 is an apocalyptic number.

122748736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122748736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134124192).

122748736 is an abundant number, since it is smaller than the sum of its proper divisors (145499648).

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

122748736 is a wasteful number, since it uses less digits than its factorization.

122748736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679 (or 1669 counting only the distinct ones).

The product of its digits is 112896, while the sum is 40.

The square root of 122748736 is about 11079.2028594119. The cubic root of 122748736 is about 496.9801119396.

The spelling of 122748736 in words is "one hundred twenty-two million, seven hundred forty-eight thousand, seven hundred thirty-six".