122865550 has 12 divisors (see below), whose sum is σ = 228530016. Its totient is φ = 49146200.

The previous prime is 122865539. The next prime is 122865559. The reversal of 122865550 is 55568221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122865559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1228606 + ... + 1228705.

It is an arithmetic number, because the mean of its divisors is an integer number (19044168).

Almost surely, 2^122865550 is an apocalyptic number.

122865550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122865550 is a deficient number, since it is larger than the sum of its proper divisors (105664466).

122865550 is a wasteful number, since it uses less digits than its factorization.

122865550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457323 (or 2457318 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 122865550 is about 11084.4733749511. The cubic root of 122865550 is about 497.1377125543.

The spelling of 122865550 in words is "one hundred twenty-two million, eight hundred sixty-five thousand, five hundred fifty".