12158452 has 12 divisors (see below), whose sum is σ = 21311136. Its totient is φ = 6069560.

The previous prime is 12158449. The next prime is 12158501. The reversal of 12158452 is 25485121.

It is a self number, because there is not a number n which added to its sum of digits gives 12158452.

It is a congruent number.

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, 927 + ... + 5017.

It is an arithmetic number, because the mean of its divisors is an integer number (1775928).

Almost surely, 2^12158452 is an apocalyptic number.

It is an amenable number.

12158452 is a deficient number, since it is larger than the sum of its proper divisors (9152684).

12158452 is a wasteful number, since it uses less digits than its factorization.

12158452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4838 (or 4836 counting only the distinct ones).

The product of its digits is 3200, while the sum is 28.

The square root of 12158452 is about 3486.8971880456. The cubic root of 12158452 is about 229.9461247473.

The spelling of 12158452 in words is "twelve million, one hundred fifty-eight thousand, four hundred fifty-two".