12242957 has 2 divisors, whose sum is σ = 12242958. Its totient is φ = 12242956.

The previous prime is 12242953. The next prime is 12242963. The reversal of 12242957 is 75924221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10883401 + 1359556 = 3299^2 + 1166^2 .

It is an emirp because it is prime and its reverse (75924221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12242957 - 2² = 12242953 is a prime.

It is a super-2 number, since 2×12242957² = 299779992207698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12242953) 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 as a sum of consecutive naturals, namely, 6121478 + 6121479.

It is an arithmetic number, because the mean of its divisors is an integer number (6121479).

Almost surely, 2^12242957 is an apocalyptic number.

It is an amenable number.

12242957 is a deficient number, since it is larger than the sum of its proper divisors (1).

12242957 is an equidigital number, since it uses as much as digits as its factorization.

12242957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 12242957 is about 3498.9937124836. The cubic root of 12242957 is about 230.4776274903.

The spelling of 12242957 in words is "twelve million, two hundred forty-two thousand, nine hundred fifty-seven".