1130905 has 8 divisors (see below), whose sum is σ = 1393992. Its totient is φ = 880128.

The previous prime is 1130863. The next prime is 1130929. The reversal of 1130905 is 5090311.

It can be written as a sum of positive squares in 4 ways, for example, as 335241 + 795664 = 579^2 + 892^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1130905 - 2⁷ = 1130777 is a prime.

It is a super-2 number, since 2×1130905² = 2557892238050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2872 + ... + 3241.

It is an arithmetic number, because the mean of its divisors is an integer number (174249).

2^1130905 is an apocalyptic number.

It is an amenable number.

1130905 is a deficient number, since it is larger than the sum of its proper divisors (263087).

1130905 is an equidigital number, since it uses as much as digits as its factorization.

1130905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6155.

The product of its (nonzero) digits is 135, while the sum is 19.

The square root of 1130905 is about 1063.4401722711. The cubic root of 1130905 is about 104.1858425142.

The spelling of 1130905 in words is "one million, one hundred thirty thousand, nine hundred five".