1140381 has 12 divisors (see below), whose sum is σ = 1797120. Its totient is φ = 691080.

The previous prime is 1140379. The next prime is 1140383. The reversal of 1140381 is 1830411.

It is an interprime number because it is at equal distance from previous prime (1140379) and next prime (1140383).

It is not a de Polignac number, because 1140381 - 2¹ = 1140379 is a prime.

It is a super-2 number, since 2×1140381² = 2600937650322, which contains 22 as substring.

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 (1140383) 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 11 ways as a sum of consecutive naturals, for example, 5661 + ... + 5858.

It is an arithmetic number, because the mean of its divisors is an integer number (149760).

2^1140381 is an apocalyptic number.

1140381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1140381 is a deficient number, since it is larger than the sum of its proper divisors (656739).

1140381 is a wasteful number, since it uses less digits than its factorization.

1140381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11536 (or 11533 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1140381 is about 1067.8862298953. The cubic root of 1140381 is about 104.4760290859.

Adding to 1140381 its reverse (1830411), we get a palindrome (2970792).

It can be divided in two parts, 1140 and 381, that added together give a square (1521 = 39²).

The spelling of 1140381 in words is "one million, one hundred forty thousand, three hundred eighty-one".