1142003 has 2 divisors, whose sum is σ = 1142004.
Its totient is φ = 1142002.
The previous prime is 1141999. The next prime is 1142017. The reversal of 1142003 is 3002411.
Adding to 1142003 its reverse (3002411), we get a palindrome (4144414).
It is a happy number.
It is a weak prime.
It is an emirp because it is prime and its reverse (3002411) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1142003 - 22 = 1141999 is a prime.
It is not a weakly prime, because it can be changed into another prime (1142083) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571001 + 571002.
It is an arithmetic number, because the mean of its divisors is an integer number (571002).
21142003 is an apocalyptic number.
1142003 is a deficient number, since it is larger than the sum of its proper divisors (1).
1142003 is an equidigital number, since it uses as much as digits as its factorization.
1142003 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 24, while the sum is 11.
The square root of 1142003 is about 1068.6454042385.
The cubic root of 1142003 is about 104.5255388081.
The spelling of 1142003 in words is "one million, one hundred forty-two thousand, three".