1129559027 has 2 divisors, whose sum is σ = 1129559028. Its totient is φ = 1129559026.

The previous prime is 1129558993. The next prime is 1129559029. The reversal of 1129559027 is 7209559211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1129559027 - 2²⁴ = 1112781811 is a prime.

Together with 1129559029, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1129559029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564779513 + 564779514.

It is an arithmetic number, because the mean of its divisors is an integer number (564779514).

Almost surely, 2^1129559027 is an apocalyptic number.

1129559027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129559027 is an equidigital number, since it uses as much as digits as its factorization.

1129559027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 41.

The square root of 1129559027 is about 33608.9129101195. The cubic root of 1129559027 is about 1041.4449303419. Note that the first 3 decimals are identical.

The spelling of 1129559027 in words is "one billion, one hundred twenty-nine million, five hundred fifty-nine thousand, twenty-seven".