1127228309 has 2 divisors, whose sum is σ = 1127228310. Its totient is φ = 1127228308.

The previous prime is 1127228303. The next prime is 1127228317. The reversal of 1127228309 is 9038227211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1014231409 + 112996900 = 31847^2 + 10630^2 .

It is a cyclic number.

It is not a de Polignac number, because 1127228309 - 2²⁸ = 858792853 is a prime.

It is a super-2 number, since 2×1127228309² = 2541287321221998962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1127228303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563614154 + 563614155.

It is an arithmetic number, because the mean of its divisors is an integer number (563614155).

Almost surely, 2^1127228309 is an apocalyptic number.

It is an amenable number.

1127228309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1127228309 is an equidigital number, since it uses as much as digits as its factorization.

1127228309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 1127228309 is about 33574.2208993746. The cubic root of 1127228309 is about 1040.7281356163.

The spelling of 1127228309 in words is "one billion, one hundred twenty-seven million, two hundred twenty-eight thousand, three hundred nine".