123938056 has 32 divisors (see below), whose sum is σ = 254494080. Its totient is φ = 56116800.

The previous prime is 123938047. The next prime is 123938057. The reversal of 123938056 is 650839321.

It is not an unprimeable number, because it can be changed into a prime (123938057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21250 + ... + 26446.

It is an arithmetic number, because the mean of its divisors is an integer number (7952940).

Almost surely, 2^123938056 is an apocalyptic number.

It is an amenable number.

123938056 is an abundant number, since it is smaller than the sum of its proper divisors (130556024).

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

123938056 is a wasteful number, since it uses less digits than its factorization.

123938056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5485 (or 5481 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 123938056 is about 11132.7470105091. The cubic root of 123938056 is about 498.5800459450.

It can be divided in two parts, 12393 and 8056, that added together give a square (20449 = 143²).

The spelling of 123938056 in words is "one hundred twenty-three million, nine hundred thirty-eight thousand, fifty-six".