12562231 has 4 divisors (see below), whose sum is σ = 13704264. Its totient is φ = 11420200.

The previous prime is 12562183. The next prime is 12562237. The reversal of 12562231 is 13226521.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12562231 - 2¹¹ = 12560183 is a prime.

It is a super-2 number, since 2×12562231² = 315619295394722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12562237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571000 + ... + 571021.

It is an arithmetic number, because the mean of its divisors is an integer number (3426066).

Almost surely, 2^12562231 is an apocalyptic number.

12562231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12562231 is a deficient number, since it is larger than the sum of its proper divisors (1142033).

12562231 is a wasteful number, since it uses less digits than its factorization.

12562231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142032.

The product of its digits is 720, while the sum is 22.

The square root of 12562231 is about 3544.3237718922. The cubic root of 12562231 is about 232.4639386010.

Adding to 12562231 its reverse (13226521), we get a palindrome (25788752).

The spelling of 12562231 in words is "twelve million, five hundred sixty-two thousand, two hundred thirty-one".