1089972571 has 2 divisors, whose sum is σ = 1089972572. Its totient is φ = 1089972570.

The previous prime is 1089972509. The next prime is 1089972589. The reversal of 1089972571 is 1752799801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1089972571 - 2¹¹ = 1089970523 is a prime.

It is not a weakly prime, because it can be changed into another prime (1089972071) 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, 544986285 + 544986286.

It is an arithmetic number, because the mean of its divisors is an integer number (544986286).

Almost surely, 2^1089972571 is an apocalyptic number.

1089972571 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089972571 is an equidigital number, since it uses as much as digits as its factorization.

1089972571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 49.

The square root of 1089972571 is about 33014.7326355977. The cubic root of 1089972571 is about 1029.1338339766.

The spelling of 1089972571 in words is "one billion, eighty-nine million, nine hundred seventy-two thousand, five hundred seventy-one".