1109142277 has 2 divisors, whose sum is σ = 1109142278. Its totient is φ = 1109142276.

The previous prime is 1109142257. The next prime is 1109142283. The reversal of 1109142277 is 7722419011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1086427521 + 22714756 = 32961^2 + 4766^2 .

It is a cyclic number.

It is not a de Polignac number, because 1109142277 - 2²³ = 1100753669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1109142247) 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, 554571138 + 554571139.

It is an arithmetic number, because the mean of its divisors is an integer number (554571139).

Almost surely, 2^1109142277 is an apocalyptic number.

It is an amenable number.

1109142277 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109142277 is an equidigital number, since it uses as much as digits as its factorization.

1109142277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 1109142277 is about 33303.7877275243. The cubic root of 1109142277 is about 1035.1320444226.

The spelling of 1109142277 in words is "one billion, one hundred nine million, one hundred forty-two thousand, two hundred seventy-seven".