1081147 has 4 divisors (see below), whose sum is σ = 1101600. Its totient is φ = 1060696.

The previous prime is 1081139. The next prime is 1081153. The reversal of 1081147 is 7411801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1081147 - 2³ = 1081139 is a prime.

It is a Duffinian number.

1081147 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1081127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10147 + ... + 10252.

It is an arithmetic number, because the mean of its divisors is an integer number (275400).

2^1081147 is an apocalyptic number.

1081147 is a deficient number, since it is larger than the sum of its proper divisors (20453).

1081147 is an equidigital number, since it uses as much as digits as its factorization.

1081147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20452.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 1081147 is about 1039.7821887299. The cubic root of 1081147 is about 102.6348651058.

Adding to 1081147 its reverse (7411801), we get a palindrome (8492948).

The spelling of 1081147 in words is "one million, eighty-one thousand, one hundred forty-seven".