123563142 has 48 divisors (see below), whose sum is σ = 281165040. Its totient is φ = 39162816.

The previous prime is 123563093. The next prime is 123563147. The reversal of 123563142 is 241365321.

123563142 is a `hidden beast` number, since 1 + 23 + 5 + 631 + 4 + 2 = 666.

It is a super-3 number, since 3×123563142³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123563147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33208 + ... + 36740.

It is an arithmetic number, because the mean of its divisors is an integer number (5857605).

Almost surely, 2^123563142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123563142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140582520).

123563142 is an abundant number, since it is smaller than the sum of its proper divisors (157601898).

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

123563142 is a wasteful number, since it uses less digits than its factorization.

123563142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3637 (or 3634 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 123563142 is about 11115.8959153098. The cubic root of 123563142 is about 498.0768014323.

The spelling of 123563142 in words is "one hundred twenty-three million, five hundred sixty-three thousand, one hundred forty-two".