1091172083 has 2 divisors, whose sum is σ = 1091172084. Its totient is φ = 1091172082.

The previous prime is 1091172037. The next prime is 1091172097. The reversal of 1091172083 is 3802711901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1091172083 - 2¹⁶ = 1091106547 is a prime.

It is not a weakly prime, because it can be changed into another prime (1091172583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545586041 + 545586042.

It is an arithmetic number, because the mean of its divisors is an integer number (545586042).

Almost surely, 2^1091172083 is an apocalyptic number.

1091172083 is a deficient number, since it is larger than the sum of its proper divisors (1).

1091172083 is an equidigital number, since it uses as much as digits as its factorization.

1091172083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 1091172083 is about 33032.8939543601. The cubic root of 1091172083 is about 1029.5112152837.

Adding to 1091172083 its reverse (3802711901), we get a palindrome (4893883984).

The spelling of 1091172083 in words is "one billion, ninety-one million, one hundred seventy-two thousand, eighty-three".