1132156261 has 2 divisors, whose sum is σ = 1132156262. Its totient is φ = 1132156260.

The previous prime is 1132156243. The next prime is 1132156283. The reversal of 1132156261 is 1626512311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1024640100 + 107516161 = 32010^2 + 10369^2 .

It is an emirp because it is prime and its reverse (1626512311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1132156261 - 2¹¹ = 1132154213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1132156231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566078130 + 566078131.

It is an arithmetic number, because the mean of its divisors is an integer number (566078131).

Almost surely, 2^1132156261 is an apocalyptic number.

It is an amenable number.

1132156261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1132156261 is an equidigital number, since it uses as much as digits as its factorization.

1132156261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 1132156261 is about 33647.5297904616. The cubic root of 1132156261 is about 1042.2425294118.

Adding to 1132156261 its reverse (1626512311), we get a palindrome (2758668572).

The spelling of 1132156261 in words is "one billion, one hundred thirty-two million, one hundred fifty-six thousand, two hundred sixty-one".