1190045 has 4 divisors (see below), whose sum is σ = 1428060. Its totient is φ = 952032.

The previous prime is 1190041. The next prime is 1190047. The reversal of 1190045 is 5400911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5400911 = 47 ⋅114913.

It can be written as a sum of positive squares in 2 ways, for example, as 289444 + 900601 = 538^2 + 949^2 .

It is a cyclic number.

It is not a de Polignac number, because 1190045 - 2² = 1190041 is a prime.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1189999 and 1190026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1190041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119000 + ... + 119009.

It is an arithmetic number, because the mean of its divisors is an integer number (357015).

2^1190045 is an apocalyptic number.

It is an amenable number.

1190045 is a deficient number, since it is larger than the sum of its proper divisors (238015).

1190045 is an equidigital number, since it uses as much as digits as its factorization.

1190045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238014.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1190045 is about 1090.8918369848. The cubic root of 1190045 is about 105.9711859501.

Adding to 1190045 its reverse (5400911), we get a palindrome (6590956).

The spelling of 1190045 in words is "one million, one hundred ninety thousand, forty-five".