123261066 has 12 divisors (see below), whose sum is σ = 267065682. Its totient is φ = 41087016.

The previous prime is 123261043. The next prime is 123261077. The reversal of 123261066 is 660162321.

123261066 is a `hidden beast` number, since 12 + 32 + 610 + 6 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 104468841 + 18792225 = 10221^2 + 4335^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3423901 + ... + 3423936.

Almost surely, 2^123261066 is an apocalyptic number.

123261066 is an abundant number, since it is smaller than the sum of its proper divisors (143804616).

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

123261066 is a wasteful number, since it uses less digits than its factorization.

123261066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6847845 (or 6847842 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 123261066 is about 11102.3000319754. The cubic root of 123261066 is about 497.6705858458.

The spelling of 123261066 in words is "one hundred twenty-three million, two hundred sixty-one thousand, sixty-six".