122390586 has 12 divisors (see below), whose sum is σ = 265179642. Its totient is φ = 40796856.

The previous prime is 122390563. The next prime is 122390627. The reversal of 122390586 is 685093221.

It can be written as a sum of positive squares in only one way, i.e., 118265625 + 4124961 = 10875^2 + 2031^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 122390586.

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 5 ways as a sum of consecutive naturals, for example, 3399721 + ... + 3399756.

Almost surely, 2^122390586 is an apocalyptic number.

122390586 is an abundant number, since it is smaller than the sum of its proper divisors (142789056).

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

122390586 is a wasteful number, since it uses less digits than its factorization.

122390586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6799485 (or 6799482 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 122390586 is about 11063.0278857101. The cubic root of 122390586 is about 496.4962866679.

It can be divided in two parts, 1223 and 90586, that added together give a square (91809 = 303²).

The spelling of 122390586 in words is "one hundred twenty-two million, three hundred ninety thousand, five hundred eighty-six".