1132772321 has 2 divisors, whose sum is σ = 1132772322. Its totient is φ = 1132772320.

The previous prime is 1132772273. The next prime is 1132772357. The reversal of 1132772321 is 1232772311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 856381696 + 276390625 = 29264^2 + 16625^2 .

It is an emirp because it is prime and its reverse (1232772311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1132772321 - 2¹⁴ = 1132755937 is a prime.

It is not a weakly prime, because it can be changed into another prime (1132772821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566386160 + 566386161.

It is an arithmetic number, because the mean of its divisors is an integer number (566386161).

Almost surely, 2^1132772321 is an apocalyptic number.

It is an amenable number.

1132772321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1132772321 is an equidigital number, since it uses as much as digits as its factorization.

1132772321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3528, while the sum is 29.

The square root of 1132772321 is about 33656.6831550585. The cubic root of 1132772321 is about 1042.4315396887.

The spelling of 1132772321 in words is "one billion, one hundred thirty-two million, seven hundred seventy-two thousand, three hundred twenty-one".