123485136 has 20 divisors (see below), whose sum is σ = 319003392. Its totient is φ = 41161696.

The previous prime is 123485113. The next prime is 123485189. The reversal of 123485136 is 631584321.

It is a junction number, because it is equal to n+sod(n) for n = 123485097 and 123485106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1286256 + ... + 1286351.

Almost surely, 2^123485136 is an apocalyptic number.

123485136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123485136 is an abundant number, since it is smaller than the sum of its proper divisors (195518256).

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

123485136 is a wasteful number, since it uses less digits than its factorization.

123485136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572618 (or 2572612 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 123485136 is about 11112.3866023461. The cubic root of 123485136 is about 497.9719666160.

The spelling of 123485136 in words is "one hundred twenty-three million, four hundred eighty-five thousand, one hundred thirty-six".