1145232271 has 2 divisors, whose sum is σ = 1145232272. Its totient is φ = 1145232270.

The previous prime is 1145232229. The next prime is 1145232281. The reversal of 1145232271 is 1722325411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1145232271 - 2¹³ = 1145224079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145232211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572616135 + 572616136.

It is an arithmetic number, because the mean of its divisors is an integer number (572616136).

Almost surely, 2^1145232271 is an apocalyptic number.

1145232271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145232271 is an equidigital number, since it uses as much as digits as its factorization.

1145232271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 28.

The square root of 1145232271 is about 33841.2805756520. The cubic root of 1145232271 is about 1046.2396926530.

Adding to 1145232271 its reverse (1722325411), we get a palindrome (2867557682).

The spelling of 1145232271 in words is "one billion, one hundred forty-five million, two hundred thirty-two thousand, two hundred seventy-one".