1120045 has 8 divisors (see below), whose sum is σ = 1423224. Its totient is φ = 843264.

The previous prime is 1120019. The next prime is 1120051. The reversal of 1120045 is 5400211.

It can be written as a sum of positive squares in 4 ways, for example, as 299209 + 820836 = 547^2 + 906^2 .

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 1120045 - 2¹³ = 1111853 is a prime.

It is a Duffinian number.

1120045 is a lucky number.

It is a congruent 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, 6504 + ... + 6673.

It is an arithmetic number, because the mean of its divisors is an integer number (177903).

2^1120045 is an apocalyptic number.

It is an amenable number.

1120045 is a deficient number, since it is larger than the sum of its proper divisors (303179).

1120045 is a wasteful number, since it uses less digits than its factorization.

1120045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13199.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1120045 is about 1058.3217847139. The cubic root of 1120045 is about 103.8512728650.

Adding to 1120045 its reverse (5400211), we get a palindrome (6520256).

The spelling of 1120045 in words is "one million, one hundred twenty thousand, forty-five".