1127591009 has 2 divisors, whose sum is σ = 1127591010. Its totient is φ = 1127591008.

The previous prime is 1127590999. The next prime is 1127591027. The reversal of 1127591009 is 9001957211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 682254400 + 445336609 = 26120^2 + 21103^2 .

It is a cyclic number.

It is not a de Polignac number, because 1127591009 - 2¹⁶ = 1127525473 is a prime.

It is a super-2 number, since 2×1127591009² = 2542922967155276162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1127591009.

It is not a weakly prime, because it can be changed into another prime (1127591029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563795504 + 563795505.

It is an arithmetic number, because the mean of its divisors is an integer number (563795505).

Almost surely, 2^1127591009 is an apocalyptic number.

It is an amenable number.

1127591009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1127591009 is an equidigital number, since it uses as much as digits as its factorization.

1127591009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 35.

The square root of 1127591009 is about 33579.6219305697. The cubic root of 1127591009 is about 1040.8397461373.

The spelling of 1127591009 in words is "one billion, one hundred twenty-seven million, five hundred ninety-one thousand, nine".