1133445 has 32 divisors (see below), whose sum is σ = 1975680. Its totient is φ = 552960.

The previous prime is 1133387. The next prime is 1133459. The reversal of 1133445 is 5443311.

It is not a de Polignac number, because 1133445 - 2⁶ = 1133381 is a prime.

1133445 is a lucky number.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11637 + ... + 11733.

It is an arithmetic number, because the mean of its divisors is an integer number (61740).

2^1133445 is an apocalyptic number.

1133445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1133445 is the 615-th octagonal number.

It is an amenable number.

1133445 is a deficient number, since it is larger than the sum of its proper divisors (842235).

1133445 is a wasteful number, since it uses less digits than its factorization.

1133445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165.

The product of its digits is 720, while the sum is 21.

The square root of 1133445 is about 1064.6337398373. The cubic root of 1133445 is about 104.2637842707.

Adding to 1133445 its reverse (5443311), we get a palindrome (6576756).

The spelling of 1133445 in words is "one million, one hundred thirty-three thousand, four hundred forty-five".