12230557 has 2 divisors, whose sum is σ = 12230558. Its totient is φ = 12230556.

The previous prime is 12230551. The next prime is 12230567. The reversal of 12230557 is 75503221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11329956 + 900601 = 3366^2 + 949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12230557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12230551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115278 + 6115279.

It is an arithmetic number, because the mean of its divisors is an integer number (6115279).

Almost surely, 2^12230557 is an apocalyptic number.

It is an amenable number.

12230557 is a deficient number, since it is larger than the sum of its proper divisors (1).

12230557 is an equidigital number, since it uses as much as digits as its factorization.

12230557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 12230557 is about 3497.2213255669. The cubic root of 12230557 is about 230.3997898681.

Adding to 12230557 its reverse (75503221), we get a palindrome (87733778).

The spelling of 12230557 in words is "twelve million, two hundred thirty thousand, five hundred fifty-seven".