12135124 has 6 divisors (see below), whose sum is σ = 21236474. Its totient is φ = 6067560.

The previous prime is 12135121. The next prime is 12135143. The reversal of 12135124 is 42153121.

12135124 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., 9412624 + 2722500 = 3068^2 + 1650^2 .

It is a super-2 number, since 2×12135124² = 294522468990752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12135121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1516887 + ... + 1516894.

Almost surely, 2^12135124 is an apocalyptic number.

It is an amenable number.

12135124 is a deficient number, since it is larger than the sum of its proper divisors (9101350).

12135124 is a wasteful number, since it uses less digits than its factorization.

12135124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3033785 (or 3033783 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 12135124 is about 3483.5504876491. The cubic root of 12135124 is about 229.7989673748.

Adding to 12135124 its reverse (42153121), we get a palindrome (54288245).

It can be divided in two parts, 121 and 35124, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 12135124 in words is "twelve million, one hundred thirty-five thousand, one hundred twenty-four".