12152240 has 20 divisors (see below), whose sum is σ = 28254144. Its totient is φ = 4860864.

The previous prime is 12152233. The next prime is 12152251. The reversal of 12152240 is 4225121.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 75872 + ... + 76031.

Almost surely, 2^12152240 is an apocalyptic number.

12152240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12152240 is an abundant number, since it is smaller than the sum of its proper divisors (16101904).

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

12152240 is a wasteful number, since it uses less digits than its factorization.

12152240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151916 (or 151910 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 12152240 is about 3486.0063109524. The cubic root of 12152240 is about 229.9069566946.

Adding to 12152240 its reverse (4225121), we get a palindrome (16377361).

The spelling of 12152240 in words is "twelve million, one hundred fifty-two thousand, two hundred forty".