1125777727 has 2 divisors, whose sum is σ = 1125777728. Its totient is φ = 1125777726.

The previous prime is 1125777677. The next prime is 1125777773. The reversal of 1125777727 is 7277775211.

It is a happy number.

It is an a-pointer prime, because the next prime (1125777773) can be obtained adding 1125777727 to its sum of digits (46).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1125777727 - 2²⁷ = 991559999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125777127) 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 as a sum of consecutive naturals, namely, 562888863 + 562888864.

It is an arithmetic number, because the mean of its divisors is an integer number (562888864).

Almost surely, 2^1125777727 is an apocalyptic number.

1125777727 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125777727 is an equidigital number, since it uses as much as digits as its factorization.

1125777727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336140, while the sum is 46.

The square root of 1125777727 is about 33552.6113290754. The cubic root of 1125777727 is about 1040.2815211122.

The spelling of 1125777727 in words is "one billion, one hundred twenty-five million, seven hundred seventy-seven thousand, seven hundred twenty-seven".