140123124 has 18 divisors (see below), whose sum is σ = 354200210. Its totient is φ = 46707696.

The previous prime is 140123077. The next prime is 140123143. The reversal of 140123124 is 421321041.

140123124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 113806224 + 26316900 = 10668^2 + 5130^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 140123097 and 140123106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1946119 + ... + 1946190.

Almost surely, 2^140123124 is an apocalyptic number.

It is an amenable number.

140123124 is an abundant number, since it is smaller than the sum of its proper divisors (214077086).

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

140123124 is a wasteful number, since it uses less digits than its factorization.

140123124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3892319 (or 3892314 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 140123124 is about 11837.3613613846. The cubic root of 140123124 is about 519.4015847844.

Adding to 140123124 its reverse (421321041), we get a palindrome (561444165).

The spelling of 140123124 in words is "one hundred forty million, one hundred twenty-three thousand, one hundred twenty-four".