1143011 has 4 divisors (see below), whose sum is σ = 1149792. Its totient is φ = 1136232.

The previous prime is 1142971. The next prime is 1143013. The reversal of 1143011 is 1103411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1103411 = 71 ⋅15541.

It is a cyclic number.

It is not a de Polignac number, because 1143011 - 2¹⁴ = 1126627 is a prime.

It is a super-2 number, since 2×1143011² = 2612948292242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1142983 and 1143001.

It is not an unprimeable number, because it can be changed into a prime (1143013) 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, 3131 + ... + 3476.

It is an arithmetic number, because the mean of its divisors is an integer number (287448).

2^1143011 is an apocalyptic number.

1143011 is a deficient number, since it is larger than the sum of its proper divisors (6781).

1143011 is an equidigital number, since it uses as much as digits as its factorization.

1143011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6780.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1143011 is about 1069.1169253173. The cubic root of 1143011 is about 104.5562832571.

Adding to 1143011 its reverse (1103411), we get a palindrome (2246422).

It can be divided in two parts, 114 and 3011, that added together give a 5-th power (3125 = 5⁵).

The spelling of 1143011 in words is "one million, one hundred forty-three thousand, eleven".