1170045 has 32 divisors (see below), whose sum is σ = 2125440. Its totient is φ = 618192.

The previous prime is 1170031. The next prime is 1170049. The reversal of 1170045 is 5400711.

It is not a de Polignac number, because 1170045 - 2⁸ = 1169789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1170049) 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 31 ways as a sum of consecutive naturals, for example, 10882 + ... + 10988.

It is an arithmetic number, because the mean of its divisors is an integer number (66420).

2^1170045 is an apocalyptic number.

1170045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1170045 is a deficient number, since it is larger than the sum of its proper divisors (955395).

1170045 is an frugal number, since it uses more digits than its factorization.

1170045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 1170045 is about 1081.6861836965. The cubic root of 1170045 is about 105.3741752193.

Adding to 1170045 its reverse (5400711), we get a palindrome (6570756).

The spelling of 1170045 in words is "one million, one hundred seventy thousand, forty-five".