12581132 has 6 divisors (see below), whose sum is σ = 22016988. Its totient is φ = 6290564.

The previous prime is 12581123. The next prime is 12581183. The reversal of 12581132 is 23118521.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12581098 and 12581107.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572638 + ... + 1572645.

It is an arithmetic number, because the mean of its divisors is an integer number (3669498).

Almost surely, 2^12581132 is an apocalyptic number.

It is an amenable number.

12581132 is a deficient number, since it is larger than the sum of its proper divisors (9435856).

12581132 is a wasteful number, since it uses less digits than its factorization.

12581132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145287 (or 3145285 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

The square root of 12581132 is about 3546.9891457404. The cubic root of 12581132 is about 232.5804677728.

Adding to 12581132 its reverse (23118521), we get a palindrome (35699653).

The spelling of 12581132 in words is "twelve million, five hundred eighty-one thousand, one hundred thirty-two".