12165240 has 32 divisors (see below), whose sum is σ = 36496080. Its totient is φ = 3244032.

The previous prime is 12165221. The next prime is 12165277. The reversal of 12165240 is 4256121.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 50569 + ... + 50808.

Almost surely, 2^12165240 is an apocalyptic number.

12165240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12165240 is an abundant number, since it is smaller than the sum of its proper divisors (24330840).

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

12165240 is a wasteful number, since it uses less digits than its factorization.

12165240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101391 (or 101387 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 12165240 is about 3487.8704104367. The cubic root of 12165240 is about 229.9889093581.

The spelling of 12165240 in words is "twelve million, one hundred sixty-five thousand, two hundred forty".