123136226 has 16 divisors (see below), whose sum is σ = 194693760. Its totient is φ = 58247280.

The previous prime is 123136187. The next prime is 123136249. The reversal of 123136226 is 622631321.

It is a junction number, because it is equal to n+sod(n) for n = 123136195 and 123136204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32840 + ... + 36396.

It is an arithmetic number, because the mean of its divisors is an integer number (12168360).

Almost surely, 2^123136226 is an apocalyptic number.

123136226 is a deficient number, since it is larger than the sum of its proper divisors (71557534).

123136226 is a wasteful number, since it uses less digits than its factorization.

123136226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4489.

The product of its digits is 2592, while the sum is 26.

The square root of 123136226 is about 11096.6763492498. The cubic root of 123136226 is about 497.5025138969.

Adding to 123136226 its reverse (622631321), we get a palindrome (745767547).

The spelling of 123136226 in words is "one hundred twenty-three million, one hundred thirty-six thousand, two hundred twenty-six".