1140331 has 4 divisors (see below), whose sum is σ = 1156464. Its totient is φ = 1124200.

The previous prime is 1140319. The next prime is 1140341. The reversal of 1140331 is 1330411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1140331 - 2⁷ = 1140203 is a prime.

It is a super-2 number, since 2×1140331² = 2600709579122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7960 + ... + 8101.

It is an arithmetic number, because the mean of its divisors is an integer number (289116).

2^1140331 is an apocalyptic number.

1140331 is a deficient number, since it is larger than the sum of its proper divisors (16133).

1140331 is an equidigital number, since it uses as much as digits as its factorization.

1140331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16132.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1140331 is about 1067.8628189051. The cubic root of 1140331 is about 104.4745021465.

Adding to 1140331 its reverse (1330411), we get a palindrome (2470742).

The spelling of 1140331 in words is "one million, one hundred forty thousand, three hundred thirty-one".