1131282709 has 2 divisors, whose sum is σ = 1131282710. Its totient is φ = 1131282708.

The previous prime is 1131282683. The next prime is 1131282727. The reversal of 1131282709 is 9072821311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1130976900 + 305809 = 33630^2 + 553^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131282709 - 2¹³ = 1131274517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131282109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565641354 + 565641355.

It is an arithmetic number, because the mean of its divisors is an integer number (565641355).

Almost surely, 2^1131282709 is an apocalyptic number.

It is an amenable number.

1131282709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131282709 is an equidigital number, since it uses as much as digits as its factorization.

1131282709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 1131282709 is about 33634.5463623341. The cubic root of 1131282709 is about 1041.9744017275.

The spelling of 1131282709 in words is "one billion, one hundred thirty-one million, two hundred eighty-two thousand, seven hundred nine".