123708563 has 12 divisors (see below), whose sum is σ = 142436088. Its totient is φ = 106539840.

The previous prime is 123708547. The next prime is 123708583. The reversal of 123708563 is 365807321.

It is not a de Polignac number, because 123708563 - 2⁴ = 123708547 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123708503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11606 + ... + 19547.

It is an arithmetic number, because the mean of its divisors is an integer number (11869674).

Almost surely, 2^123708563 is an apocalyptic number.

123708563 is a deficient number, since it is larger than the sum of its proper divisors (18727525).

123708563 is a wasteful number, since it uses less digits than its factorization.

123708563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31202 (or 31183 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 123708563 is about 11122.4351200625. The cubic root of 123708563 is about 498.2721197379.

The spelling of 123708563 in words is "one hundred twenty-three million, seven hundred eight thousand, five hundred sixty-three".