122585390 has 16 divisors (see below), whose sum is σ = 220806432. Its totient is φ = 49000224.

The previous prime is 122585387. The next prime is 122585401. The reversal of 122585390 is 93585221.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122585390.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15152 + ... + 21788.

It is an arithmetic number, because the mean of its divisors is an integer number (13800402).

Almost surely, 2^122585390 is an apocalyptic number.

122585390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122585390 is a deficient number, since it is larger than the sum of its proper divisors (98221042).

122585390 is a wasteful number, since it uses less digits than its factorization.

122585390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8491.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 122585390 is about 11071.8286655819. The cubic root of 122585390 is about 496.7595645238.

The spelling of 122585390 in words is "one hundred twenty-two million, five hundred eighty-five thousand, three hundred ninety".