123930742 has 24 divisors (see below), whose sum is σ = 202040784. Its totient is φ = 56987424.

The previous prime is 123930727. The next prime is 123930743. The reversal of 123930742 is 247039321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123930743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125583 + ... + 126565.

It is an arithmetic number, because the mean of its divisors is an integer number (8418366).

Almost surely, 2^123930742 is an apocalyptic number.

123930742 is a deficient number, since it is larger than the sum of its proper divisors (78110042).

123930742 is a wasteful number, since it uses less digits than its factorization.

123930742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384 (or 1371 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 123930742 is about 11132.4185153092. The cubic root of 123930742 is about 498.5702381256.

The spelling of 123930742 in words is "one hundred twenty-three million, nine hundred thirty thousand, seven hundred forty-two".