1147105 has 8 divisors (see below), whose sum is σ = 1399464. Its totient is φ = 902400.

The previous prime is 1147103. The next prime is 1147117. The reversal of 1147105 is 5017411.

It can be written as a sum of positive squares in 4 ways, for example, as 64 + 1147041 = 8^2 + 1071^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1147105 - 2¹ = 1147103 is a prime.

It is a super-3 number, since 3×1147105³ = 4528253933319547875, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1147103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1576 + ... + 2185.

It is an arithmetic number, because the mean of its divisors is an integer number (174933).

2^1147105 is an apocalyptic number.

It is an amenable number.

1147105 is a deficient number, since it is larger than the sum of its proper divisors (252359).

1147105 is an equidigital number, since it uses as much as digits as its factorization.

1147105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3827.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 1147105 is about 1071.0298782014. The cubic root of 1147105 is about 104.6809666228.

The spelling of 1147105 in words is "one million, one hundred forty-seven thousand, one hundred five".