1140071 has 8 divisors (see below), whose sum is σ = 1216800. Its totient is φ = 1064448.

The previous prime is 1139993. The next prime is 1140091. The reversal of 1140071 is 1700411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140091) 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 7 ways as a sum of consecutive naturals, for example, 3215 + ... + 3551.

It is an arithmetic number, because the mean of its divisors is an integer number (152100).

2^1140071 is an apocalyptic number.

1140071 is a deficient number, since it is larger than the sum of its proper divisors (76729).

1140071 is a wasteful number, since it uses less digits than its factorization.

1140071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 1140071 is about 1067.7410734818. The cubic root of 1140071 is about 104.4665613424.

Adding to 1140071 its reverse (1700411), we get a palindrome (2840482).

The spelling of 1140071 in words is "one million, one hundred forty thousand, seventy-one".