1130345 has 8 divisors (see below), whose sum is σ = 1365000. Its totient is φ = 898560.

The previous prime is 1130321. The next prime is 1130351. The reversal of 1130345 is 5430311.

It can be written as a sum of positive squares in 4 ways, for example, as 4624 + 1125721 = 68^2 + 1061^2 .

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

It is not a de Polignac number, because 1130345 - 2⁶ = 1130281 is a prime.

It is an Ulam number.

It is a Curzon 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, 281 + ... + 1529.

It is an arithmetic number, because the mean of its divisors is an integer number (170625).

2^1130345 is an apocalyptic number.

It is an amenable number.

1130345 is a deficient number, since it is larger than the sum of its proper divisors (234655).

1130345 is a wasteful number, since it uses less digits than its factorization.

1130345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1130345 is about 1063.1768432392. The cubic root of 1130345 is about 104.1686428070.

Adding to 1130345 its reverse (5430311), we get a palindrome (6560656).

The spelling of 1130345 in words is "one million, one hundred thirty thousand, three hundred forty-five".