1140111 has 12 divisors (see below), whose sum is σ = 1882192. Its totient is φ = 651456.

The previous prime is 1140103. The next prime is 1140121. The reversal of 1140111 is 1110411.

It is not a de Polignac number, because 1140111 - 2³ = 1140103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1140093 and 1140102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140101) 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, 8986 + ... + 9111.

2^1140111 is an apocalyptic number.

1140111 is a deficient number, since it is larger than the sum of its proper divisors (742081).

1140111 is a wasteful number, since it uses less digits than its factorization.

1140111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18110 (or 18107 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1140111 is about 1067.7598044504. The cubic root of 1140111 is about 104.4677830832.

Adding to 1140111 its reverse (1110411), we get a palindrome (2250522).

The spelling of 1140111 in words is "one million, one hundred forty thousand, one hundred eleven".