1140347 has 4 divisors (see below), whose sum is σ = 1228080. Its totient is φ = 1052616.

The previous prime is 1140341. The next prime is 1140353. The reversal of 1140347 is 7430411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7430411 = 17 ⋅437083.

It is an interprime number because it is at equal distance from previous prime (1140341) and next prime (1140353).

It is a cyclic number.

It is not a de Polignac number, because 1140347 - 2⁸ = 1140091 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1140341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43847 + ... + 43872.

It is an arithmetic number, because the mean of its divisors is an integer number (307020).

2^1140347 is an apocalyptic number.

1140347 is a deficient number, since it is larger than the sum of its proper divisors (87733).

1140347 is an equidigital number, since it uses as much as digits as its factorization.

1140347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87732.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1140347 is about 1067.8703104778. The cubic root of 1140347 is about 104.4749907720.

Adding to 1140347 its reverse (7430411), we get a palindrome (8570758).

Subtracting 1140347 from its reverse (7430411), we obtain a square (6290064 = 2508²).

The spelling of 1140347 in words is "one million, one hundred forty thousand, three hundred forty-seven".