123398108 has 24 divisors (see below), whose sum is σ = 222820752. Its totient is φ = 59750784.

The previous prime is 123398083. The next prime is 123398113. The reversal of 123398108 is 801893321.

It is a congruent number.

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, 31760 + ... + 35432.

It is an arithmetic number, because the mean of its divisors is an integer number (9284198).

Almost surely, 2^123398108 is an apocalyptic number.

It is an amenable number.

123398108 is a deficient number, since it is larger than the sum of its proper divisors (99422644).

123398108 is a wasteful number, since it uses less digits than its factorization.

123398108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3941 (or 3939 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 123398108 is about 11108.4701016837. The cubic root of 123398108 is about 497.8549547213.

The spelling of 123398108 in words is "one hundred twenty-three million, three hundred ninety-eight thousand, one hundred eight".