1122555727 has 2 divisors, whose sum is σ = 1122555728. Its totient is φ = 1122555726.

The previous prime is 1122555703. The next prime is 1122555767. The reversal of 1122555727 is 7275552211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122555727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122555767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561277863 + 561277864.

It is an arithmetic number, because the mean of its divisors is an integer number (561277864).

Almost surely, 2^1122555727 is an apocalyptic number.

1122555727 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122555727 is an equidigital number, since it uses as much as digits as its factorization.

1122555727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49000, while the sum is 37.

The square root of 1122555727 is about 33504.5627788216. The cubic root of 1122555727 is about 1039.2881368045.

The spelling of 1122555727 in words is "one billion, one hundred twenty-two million, five hundred fifty-five thousand, seven hundred twenty-seven".