12120136 has 16 divisors (see below), whose sum is σ = 25971840. Its totient is φ = 5194320.

The previous prime is 12120091. The next prime is 12120179. The reversal of 12120136 is 63102121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108160 + ... + 108271.

It is an arithmetic number, because the mean of its divisors is an integer number (1623240).

Almost surely, 2^12120136 is an apocalyptic number.

It is an amenable number.

12120136 is an abundant number, since it is smaller than the sum of its proper divisors (13851704).

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

12120136 is a wasteful number, since it uses less digits than its factorization.

12120136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216444 (or 216440 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 12120136 is about 3481.3985695407. The cubic root of 12120136 is about 229.7043207420.

Adding to 12120136 its reverse (63102121), we get a palindrome (75222257).

The spelling of 12120136 in words is "twelve million, one hundred twenty thousand, one hundred thirty-six".