1126645 has 8 divisors (see below), whose sum is σ = 1456056. Its totient is φ = 831936.

The previous prime is 1126627. The next prime is 1126649. The reversal of 1126645 is 5466211.

It can be written as a sum of positive squares in 4 ways, for example, as 26244 + 1100401 = 162^2 + 1049^2 .

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 1126645 - 2¹¹ = 1124597 is a prime.

It is a Duffinian number.

1126645 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1126649) 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, 8602 + ... + 8731.

It is an arithmetic number, because the mean of its divisors is an integer number (182007).

2^1126645 is an apocalyptic number.

It is an amenable number.

1126645 is a deficient number, since it is larger than the sum of its proper divisors (329411).

1126645 is a wasteful number, since it uses less digits than its factorization.

1126645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17351.

The product of its digits is 1440, while the sum is 25.

The square root of 1126645 is about 1061.4353489497. The cubic root of 1126645 is about 104.0548588780.

It can be divided in two parts, 11266 and 45, that added together give a palindrome (11311).

The spelling of 1126645 in words is "one million, one hundred twenty-six thousand, six hundred forty-five".