12542233 has 4 divisors (see below), whose sum is σ = 13682448. Its totient is φ = 11402020.

The previous prime is 12542227. The next prime is 12542237. The reversal of 12542233 is 33224521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12542233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12542237) 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 3 ways as a sum of consecutive naturals, for example, 570091 + ... + 570112.

It is an arithmetic number, because the mean of its divisors is an integer number (3420612).

Almost surely, 2^12542233 is an apocalyptic number.

It is an amenable number.

12542233 is a deficient number, since it is larger than the sum of its proper divisors (1140215).

12542233 is a wasteful number, since it uses less digits than its factorization.

12542233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140214.

The product of its digits is 1440, while the sum is 22.

The square root of 12542233 is about 3541.5015177182. The cubic root of 12542233 is about 232.3405188341.

Adding to 12542233 its reverse (33224521), we get a palindrome (45766754).

It can be divided in two parts, 12 and 542233, that added together give a palindrome (542245).

The spelling of 12542233 in words is "twelve million, five hundred forty-two thousand, two hundred thirty-three".