12226587 has 8 divisors (see below), whose sum is σ = 17261136. Its totient is φ = 7671552.

The previous prime is 12226583. The next prime is 12226601. The reversal of 12226587 is 78562221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12226587 - 2² = 12226583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12226583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119818 + ... + 119919.

It is an arithmetic number, because the mean of its divisors is an integer number (2157642).

Almost surely, 2^12226587 is an apocalyptic number.

12226587 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12226587 is a deficient number, since it is larger than the sum of its proper divisors (5034549).

12226587 is a wasteful number, since it uses less digits than its factorization.

12226587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239757.

The product of its digits is 13440, while the sum is 33.

The square root of 12226587 is about 3496.6536860261. The cubic root of 12226587 is about 230.3748581567.

The spelling of 12226587 in words is "twelve million, two hundred twenty-six thousand, five hundred eighty-seven".