12152481 has 16 divisors (see below), whose sum is σ = 17969088. Its totient is φ = 7243200.

The previous prime is 12152449. The next prime is 12152513. The reversal of 12152481 is 18425121.

It is an interprime number because it is at equal distance from previous prime (12152449) and next prime (12152513).

It is not a de Polignac number, because 12152481 - 2⁵ = 12152449 is a prime.

It is a super-2 number, since 2×12152481² = 295365588910722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12152401) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1006 + ... + 5031.

It is an arithmetic number, because the mean of its divisors is an integer number (1123068).

Almost surely, 2^12152481 is an apocalyptic number.

12152481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12152481 is the 2013-rd octagonal number.

It is an amenable number.

12152481 is a deficient number, since it is larger than the sum of its proper divisors (5816607).

12152481 is a wasteful number, since it uses less digits than its factorization.

12152481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6112.

The product of its digits is 640, while the sum is 24.

The square root of 12152481 is about 3486.0408775572. The cubic root of 12152481 is about 229.9084765025.

The spelling of 12152481 in words is "twelve million, one hundred fifty-two thousand, four hundred eighty-one".