123686122 has 16 divisors (see below), whose sum is σ = 212205312. Its totient is φ = 52965360.

The previous prime is 123686119. The next prime is 123686149. The reversal of 123686122 is 221686321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19372 + ... + 24952.

It is an arithmetic number, because the mean of its divisors is an integer number (13262832).

Almost surely, 2^123686122 is an apocalyptic number.

123686122 is a deficient number, since it is larger than the sum of its proper divisors (88519190).

123686122 is a wasteful number, since it uses less digits than its factorization.

123686122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7173.

The product of its digits is 6912, while the sum is 31.

The square root of 123686122 is about 11121.4262574546. The cubic root of 123686122 is about 498.2419887037.

The spelling of 123686122 in words is "one hundred twenty-three million, six hundred eighty-six thousand, one hundred twenty-two".