123406166 has 12 divisors (see below), whose sum is σ = 200444292. Its totient is φ = 56956536.

The previous prime is 123406147. The next prime is 123406169. The reversal of 123406166 is 661604321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123406169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 182216 + ... + 182891.

It is an arithmetic number, because the mean of its divisors is an integer number (16703691).

Almost surely, 2^123406166 is an apocalyptic number.

123406166 is a deficient number, since it is larger than the sum of its proper divisors (77038126).

123406166 is a wasteful number, since it uses less digits than its factorization.

123406166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365135 (or 365122 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 123406166 is about 11108.8327919723. The cubic root of 123406166 is about 497.8657912675.

The spelling of 123406166 in words is "one hundred twenty-three million, four hundred six thousand, one hundred sixty-six".