122897736 has 112 divisors (see below), whose sum is σ = 372297660. Its totient is φ = 37791360.

The previous prime is 122897729. The next prime is 122897771. The reversal of 122897736 is 637798221.

It can be written as a sum of positive squares in 2 ways, for example, as 122544900 + 352836 = 11070^2 + 594^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122897691 and 122897700.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 75006 + ... + 76626.

Almost surely, 2^122897736 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 122897736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186148830).

122897736 is an abundant number, since it is smaller than the sum of its proper divisors (249399924).

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

122897736 is a wasteful number, since it uses less digits than its factorization.

122897736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658 (or 1639 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 122897736 is about 11085.9251305428. The cubic root of 122897736 is about 497.1811190188.

The spelling of 122897736 in words is "one hundred twenty-two million, eight hundred ninety-seven thousand, seven hundred thirty-six".