123889124 has 6 divisors (see below), whose sum is σ = 216805974. Its totient is φ = 61944560.

The previous prime is 123889069. The next prime is 123889141. The reversal of 123889124 is 421988321.

It can be written as a sum of positive squares in only one way, i.e., 103022500 + 20866624 = 10150^2 + 4568^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15486137 + ... + 15486144.

It is an arithmetic number, because the mean of its divisors is an integer number (36134329).

Almost surely, 2^123889124 is an apocalyptic number.

It is an amenable number.

123889124 is a deficient number, since it is larger than the sum of its proper divisors (92916850).

123889124 is a wasteful number, since it uses less digits than its factorization.

123889124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30972285 (or 30972283 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 123889124 is about 11130.5491329044. The cubic root of 123889124 is about 498.5144224904.

It can be divided in two parts, 12388 and 9124, that added together give a palindrome (21512).

The spelling of 123889124 in words is "one hundred twenty-three million, eight hundred eighty-nine thousand, one hundred twenty-four".