1133645 has 8 divisors (see below), whose sum is σ = 1440504. Its totient is φ = 853504.

The previous prime is 1133641. The next prime is 1133651. The reversal of 1133645 is 5463311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 137641 + 996004 = 371^2 + 998^2 .

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 1133645 - 2² = 1133641 is a prime.

It is a super-3 number, since 3×1133645³ = 4370714968656933375, which contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1133645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6584 + ... + 6753.

It is an arithmetic number, because the mean of its divisors is an integer number (180063).

2^1133645 is an apocalyptic number.

It is an amenable number.

1133645 is a deficient number, since it is larger than the sum of its proper divisors (306859).

1133645 is a wasteful number, since it uses less digits than its factorization.

1133645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13359.

The product of its digits is 1080, while the sum is 23.

The square root of 1133645 is about 1064.7276647106. The cubic root of 1133645 is about 104.2699164696.

Adding to 1133645 its reverse (5463311), we get a palindrome (6596956).

The spelling of 1133645 in words is "one million, one hundred thirty-three thousand, six hundred forty-five".