1142203 has 8 divisors (see below), whose sum is σ = 1215648. Its totient is φ = 1070784.

The previous prime is 1142201. The next prime is 1142233. The reversal of 1142203 is 3022411.

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

It is a cyclic number.

It is not a de Polignac number, because 1142203 - 2¹ = 1142201 is a prime.

It is an Ulam number.

It is a Duffinian number.

1142203 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1142201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 751 + ... + 1687.

It is an arithmetic number, because the mean of its divisors is an integer number (151956).

2^1142203 is an apocalyptic number.

1142203 is a deficient number, since it is larger than the sum of its proper divisors (73445).

1142203 is an equidigital number, since it uses as much as digits as its factorization.

1142203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1142203 is about 1068.7389765513. The cubic root of 1142203 is about 104.5316403355.

Adding to 1142203 its reverse (3022411), we get a palindrome (4164614).

The spelling of 1142203 in words is "one million, one hundred forty-two thousand, two hundred three".