122659992 has 192 divisors, whose sum is σ = 415222080. Its totient is φ = 31850496.

The previous prime is 122659961. The next prime is 122660003. The reversal of 122659992 is 299956221.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 635448 + ... + 635640.

It is an arithmetic number, because the mean of its divisors is an integer number (2162615).

Almost surely, 2^122659992 is an apocalyptic number.

122659992 is a gapful number since it is divisible by the number (12) 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 122659992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207611040).

122659992 is an abundant number, since it is smaller than the sum of its proper divisors (292562088).

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

122659992 is a wasteful number, since it uses less digits than its factorization.

122659992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 315 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 122659992 is about 11075.1971540014. The cubic root of 122659992 is about 496.8603153605.

The spelling of 122659992 in words is "one hundred twenty-two million, six hundred fifty-nine thousand, nine hundred ninety-two".