1081171451 has 2 divisors, whose sum is σ = 1081171452. Its totient is φ = 1081171450.

The previous prime is 1081171439. The next prime is 1081171453. The reversal of 1081171451 is 1541711801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1081171451 - 2¹⁰ = 1081170427 is a prime.

Together with 1081171453, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1081171453) 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, 540585725 + 540585726.

It is an arithmetic number, because the mean of its divisors is an integer number (540585726).

Almost surely, 2^1081171451 is an apocalyptic number.

1081171451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081171451 is an equidigital number, since it uses as much as digits as its factorization.

1081171451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 29.

The square root of 1081171451 is about 32881.1716792453. The cubic root of 1081171451 is about 1026.3563882303.

The spelling of 1081171451 in words is "one billion, eighty-one million, one hundred seventy-one thousand, four hundred fifty-one".