12135942 has 96 divisors (see below), whose sum is σ = 33546240. Its totient is φ = 3084480.

The previous prime is 12135941. The next prime is 12135967. The reversal of 12135942 is 24953121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12135941) 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 47 ways as a sum of consecutive naturals, for example, 50659 + ... + 50897.

It is an arithmetic number, because the mean of its divisors is an integer number (349440).

Almost surely, 2^12135942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12135942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16773120).

12135942 is an abundant number, since it is smaller than the sum of its proper divisors (21410298).

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

12135942 is a wasteful number, since it uses less digits than its factorization.

12135942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 295 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 12135942 is about 3483.6678946191. The cubic root of 12135942 is about 229.8041306604.

It can be divided in two parts, 121 and 35942, that added together give a palindrome (36063).

The spelling of 12135942 in words is "twelve million, one hundred thirty-five thousand, nine hundred forty-two".