12140136 has 48 divisors (see below), whose sum is σ = 34313760. Its totient is φ = 3870240.

The previous prime is 12140131. The next prime is 12140143. The reversal of 12140136 is 63104121.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (12140131) 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, 2010 + ... + 5321.

It is an arithmetic number, because the mean of its divisors is an integer number (714870).

Almost surely, 2^12140136 is an apocalyptic number.

It is an amenable number.

12140136 is an abundant number, since it is smaller than the sum of its proper divisors (22173624).

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

12140136 is a wasteful number, since it uses less digits than its factorization.

12140136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7366 (or 7359 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12140136 is about 3484.2697943759. The cubic root of 12140136 is about 229.8305999014.

Adding to 12140136 its reverse (63104121), we get a palindrome (75244257).

The spelling of 12140136 in words is "twelve million, one hundred forty thousand, one hundred thirty-six".