1140971 has 4 divisors (see below), whose sum is σ = 1228752. Its totient is φ = 1053192.

The previous prime is 1140967. The next prime is 1140973. The reversal of 1140971 is 1790411.

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 1140971 - 2² = 1140967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140973) 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, 43871 + ... + 43896.

It is an arithmetic number, because the mean of its divisors is an integer number (307188).

2^1140971 is an apocalyptic number.

1140971 is a deficient number, since it is larger than the sum of its proper divisors (87781).

1140971 is an equidigital number, since it uses as much as digits as its factorization.

1140971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87780.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 1140971 is about 1068.1624408300. The cubic root of 1140971 is about 104.4940436003.

The spelling of 1140971 in words is "one million, one hundred forty thousand, nine hundred seventy-one".