12152520 has 48 divisors (see below), whose sum is σ = 39496860. Its totient is φ = 3240576.

The previous prime is 12152513. The next prime is 12152549. The reversal of 12152520 is 2525121.

12152520 is a `hidden beast` number, since 121 + 525 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12152196 + 324 = 3486^2 + 18^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12152493 and 12152502.

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 11 ways as a sum of consecutive naturals, for example, 16519 + ... + 17238.

Almost surely, 2^12152520 is an apocalyptic number.

12152520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12152520 is an abundant number, since it is smaller than the sum of its proper divisors (27344340).

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

12152520 is a wasteful number, since it uses less digits than its factorization.

12152520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33774 (or 33767 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 12152520 is about 3486.0464712909. The cubic root of 12152520 is about 229.9087224446.

Adding to 12152520 its reverse (2525121), we get a palindrome (14677641).

The spelling of 12152520 in words is "twelve million, one hundred fifty-two thousand, five hundred twenty".