123800906 has 16 divisors (see below), whose sum is σ = 189006720. Its totient is φ = 60808320.

The previous prime is 123800893. The next prime is 123800909. The reversal of 123800906 is 609008321.

It is not an unprimeable number, because it can be changed into a prime (123800909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24671 + ... + 29261.

It is an arithmetic number, because the mean of its divisors is an integer number (11812920).

Almost surely, 2^123800906 is an apocalyptic number.

123800906 is a deficient number, since it is larger than the sum of its proper divisors (65205814).

123800906 is a wasteful number, since it uses less digits than its factorization.

123800906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4829.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 123800906 is about 11126.5855499340. The cubic root of 123800906 is about 498.3960683079.

The spelling of 123800906 in words is "one hundred twenty-three million, eight hundred thousand, nine hundred six".