123785943 has 8 divisors (see below), whose sum is σ = 165161856. Its totient is φ = 82467000.

The previous prime is 123785941. The next prime is 123785957. The reversal of 123785943 is 349587321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123785943 - 2¹ = 123785941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123785895 and 123785904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123785941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8883 + ... + 18068.

It is an arithmetic number, because the mean of its divisors is an integer number (20645232).

Almost surely, 2^123785943 is an apocalyptic number.

123785943 is a deficient number, since it is larger than the sum of its proper divisors (41375913).

123785943 is a wasteful number, since it uses less digits than its factorization.

123785943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28485.

The product of its digits is 181440, while the sum is 42.

The square root of 123785943 is about 11125.9131310648. The cubic root of 123785943 is about 498.3759882157.

The spelling of 123785943 in words is "one hundred twenty-three million, seven hundred eighty-five thousand, nine hundred forty-three".