123401608 has 24 divisors (see below), whose sum is σ = 254326590. Its totient is φ = 56091200.

The previous prime is 123401591. The next prime is 123401611. The reversal of 123401608 is 806104321.

It can be written as a sum of positive squares in only one way, i.e., 97574884 + 25826724 = 9878^2 + 5082^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62773 + ... + 64708.

Almost surely, 2^123401608 is an apocalyptic number.

It is an amenable number.

123401608 is an abundant number, since it is smaller than the sum of its proper divisors (130924982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123401608 is a wasteful number, since it uses less digits than its factorization.

123401608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127509 (or 127494 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 123401608 is about 11108.6276380118. The cubic root of 123401608 is about 497.8596616434.

Adding to 123401608 its reverse (806104321), we get a palindrome (929505929).

The spelling of 123401608 in words is "one hundred twenty-three million, four hundred one thousand, six hundred eight".