1140745 has 8 divisors (see below), whose sum is σ = 1374984. Its totient is φ = 908544.

The previous prime is 1140721. The next prime is 1140749. The reversal of 1140745 is 5470411.

It can be written as a sum of positive squares in 4 ways, for example, as 318096 + 822649 = 564^2 + 907^2 .

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 1140745 - 2⁹ = 1140233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1347 + ... + 2023.

It is an arithmetic number, because the mean of its divisors is an integer number (171873).

2^1140745 is an apocalyptic number.

It is an amenable number.

1140745 is a deficient number, since it is larger than the sum of its proper divisors (234239).

1140745 is an equidigital number, since it uses as much as digits as its factorization.

1140745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 1140745 is about 1068.0566464378. The cubic root of 1140745 is about 104.4871438592.

It can be divided in two parts, 11407 and 45, that multiplied together give a palindrome (513315).

The spelling of 1140745 in words is "one million, one hundred forty thousand, seven hundred forty-five".