122786081 has 8 divisors (see below), whose sum is σ = 135056928. Its totient is φ = 111622500.

The previous prime is 122786063. The next prime is 122786099. The reversal of 122786081 is 180687221.

It is an interprime number because it is at equal distance from previous prime (122786063) and next prime (122786099).

It is not a de Polignac number, because 122786081 - 2¹⁸ = 122523937 is a prime.

It is a super-2 number, since 2×122786081² = 30152843374677122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122726081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44795 + ... + 47456.

It is an arithmetic number, because the mean of its divisors is an integer number (16882116).

Almost surely, 2^122786081 is an apocalyptic number.

122786081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122786081 is a deficient number, since it is larger than the sum of its proper divisors (12270847).

122786081 is an frugal number, since it uses more digits than its factorization.

122786081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92284 (or 92262 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 122786081 is about 11080.8880961771. Note that the first 3 decimals coincide. The cubic root of 122786081 is about 497.0305071371.

The spelling of 122786081 in words is "one hundred twenty-two million, seven hundred eighty-six thousand, eighty-one".