1089208271 has 2 divisors, whose sum is σ = 1089208272. Its totient is φ = 1089208270.

The previous prime is 1089208249. The next prime is 1089208273. The reversal of 1089208271 is 1728029801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1089208271 - 2¹⁰ = 1089207247 is a prime.

It is a super-2 number, since 2×1089208271² = 2372749315229618882, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1089208273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1089208273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544604135 + 544604136.

It is an arithmetic number, because the mean of its divisors is an integer number (544604136).

Almost surely, 2^1089208271 is an apocalyptic number.

1089208271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089208271 is an equidigital number, since it uses as much as digits as its factorization.

1089208271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 1089208271 is about 33003.1554703486. The cubic root of 1089208271 is about 1028.8932313132.

The spelling of 1089208271 in words is "one billion, eighty-nine million, two hundred eight thousand, two hundred seventy-one".