123648912 has 30 divisors (see below), whose sum is σ = 346045622. Its totient is φ = 41216256.

The previous prime is 123648911. The next prime is 123648913. The reversal of 123648912 is 219846321.

123648912 is a `hidden beast` number, since 1 + 2 + 3 + 648 + 9 + 1 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (123648911) and next prime (123648913).

It can be written as a sum of positive squares in only one way, i.e., 117418896 + 6230016 = 10836^2 + 2496^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (123648911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 429193 + ... + 429480.

Almost surely, 2^123648912 is an apocalyptic number.

123648912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123648912 is an abundant number, since it is smaller than the sum of its proper divisors (222396710).

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

123648912 is a wasteful number, since it uses less digits than its factorization.

123648912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858687 (or 858678 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 123648912 is about 11119.7532346721. The cubic root of 123648912 is about 498.1920196272.

The spelling of 123648912 in words is "one hundred twenty-three million, six hundred forty-eight thousand, nine hundred twelve".