122959986 has 8 divisors (see below), whose sum is σ = 245919984. Its totient is φ = 40986660.

The previous prime is 122959961. The next prime is 122960009. The reversal of 122959986 is 689959221.

It is a sphenic number, since it is the product of 3 distinct primes.

122959986 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 10246660 + ... + 10246671.

It is an arithmetic number, because the mean of its divisors is an integer number (30739998).

Almost surely, 2^122959986 is an apocalyptic number.

122959986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

122959986 is a wasteful number, since it uses less digits than its factorization.

122959986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20493336.

The product of its digits is 699840, while the sum is 51.

The square root of 122959986 is about 11088.7323892319. The cubic root of 122959986 is about 497.2650486925.

The spelling of 122959986 in words is "one hundred twenty-two million, nine hundred fifty-nine thousand, nine hundred eighty-six".