122578081 has 8 divisors (see below), whose sum is σ = 123494400. Its totient is φ = 121665600.

The previous prime is 122578073. The next prime is 122578091. The reversal of 122578081 is 180875221.

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

It is a cyclic number.

It is not a de Polignac number, because 122578081 - 2³ = 122578073 is a prime.

It is a super-2 number, since 2×122578081² = 30050771883285122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122578051) by changing a digit.

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, 95200 + ... + 96478.

It is an arithmetic number, because the mean of its divisors is an integer number (15436800).

Almost surely, 2^122578081 is an apocalyptic number.

It is an amenable number.

122578081 is a deficient number, since it is larger than the sum of its proper divisors (916319).

122578081 is a wasteful number, since it uses less digits than its factorization.

122578081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919.

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 122578081 is about 11071.4985887187. The cubic root of 122578081 is about 496.7496914391.

The spelling of 122578081 in words is "one hundred twenty-two million, five hundred seventy-eight thousand, eighty-one".