1127087881 has 2 divisors, whose sum is σ = 1127087882. Its totient is φ = 1127087880.

The previous prime is 1127087873. The next prime is 1127087917. The reversal of 1127087881 is 1887807211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 695113225 + 431974656 = 26365^2 + 20784^2 .

It is a cyclic number.

It is not a de Polignac number, because 1127087881 - 2³ = 1127087873 is a prime.

It is a super-2 number, since 2×1127087881² = 2540654182994140322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1127087851) 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, 563543940 + 563543941.

It is an arithmetic number, because the mean of its divisors is an integer number (563543941).

Almost surely, 2^1127087881 is an apocalyptic number.

It is an amenable number.

1127087881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1127087881 is an equidigital number, since it uses as much as digits as its factorization.

1127087881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50176, while the sum is 43.

The square root of 1127087881 is about 33572.1295273326. The cubic root of 1127087881 is about 1040.6849164983.

The spelling of 1127087881 in words is "one billion, one hundred twenty-seven million, eighty-seven thousand, eight hundred eighty-one".