12164140 has 12 divisors (see below), whose sum is σ = 25544736. Its totient is φ = 4865648.

The previous prime is 12164101. The next prime is 12164147. The reversal of 12164140 is 4146121.

12164140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12164147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304084 + ... + 304123.

It is an arithmetic number, because the mean of its divisors is an integer number (2128728).

Almost surely, 2^12164140 is an apocalyptic number.

12164140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12164140 is an abundant number, since it is smaller than the sum of its proper divisors (13380596).

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

12164140 is a wasteful number, since it uses less digits than its factorization.

12164140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608216 (or 608214 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 12164140 is about 3487.7127175271. The cubic root of 12164140 is about 229.9819771637.

It can be divided in two parts, 121641 and 40, that multiplied together give a triangular number (4865640 = T₃₁₁₉).

The spelling of 12164140 in words is "twelve million, one hundred sixty-four thousand, one hundred forty".