123668026 has 4 divisors (see below), whose sum is σ = 185502042. Its totient is φ = 61834012.

The previous prime is 123668003. The next prime is 123668029. The reversal of 123668026 is 620866321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66438801 + 57229225 = 8151^2 + 7565^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123667982 and 123668000.

It is not an unprimeable number, because it can be changed into a prime (123668029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30917005 + ... + 30917008.

Almost surely, 2^123668026 is an apocalyptic number.

123668026 is a deficient number, since it is larger than the sum of its proper divisors (61834016).

123668026 is an equidigital number, since it uses as much as digits as its factorization.

123668026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61834015.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 123668026 is about 11120.6126629786. The cubic root of 123668026 is about 498.2176889503.

The spelling of 123668026 in words is "one hundred twenty-three million, six hundred sixty-eight thousand, twenty-six".