1242453227 has 2 divisors, whose sum is σ = 1242453228. Its totient is φ = 1242453226.

The previous prime is 1242453203. The next prime is 1242453257. The reversal of 1242453227 is 7223542421.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242453227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1242453193 and 1242453202.

It is not a weakly prime, because it can be changed into another prime (1242453257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621226613 + 621226614.

It is an arithmetic number, because the mean of its divisors is an integer number (621226614).

Almost surely, 2^1242453227 is an apocalyptic number.

1242453227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242453227 is an equidigital number, since it uses as much as digits as its factorization.

1242453227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 32.

The square root of 1242453227 is about 35248.4499942905. The cubic root of 1242453227 is about 1075.0450969363.

Adding to 1242453227 its reverse (7223542421), we get a palindrome (8465995648).

The spelling of 1242453227 in words is "one billion, two hundred forty-two million, four hundred fifty-three thousand, two hundred twenty-seven".