1204143 has 4 divisors (see below), whose sum is σ = 1605528. Its totient is φ = 802760.

The previous prime is 1204141. The next prime is 1204153. The reversal of 1204143 is 3414021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1204143 - 2¹ = 1204141 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204141) 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, 200688 + ... + 200693.

It is an arithmetic number, because the mean of its divisors is an integer number (401382).

2^1204143 is an apocalyptic number.

1204143 is a deficient number, since it is larger than the sum of its proper divisors (401385).

1204143 is an equidigital number, since it uses as much as digits as its factorization.

1204143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401384.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1204143 is about 1097.3344977718. The cubic root of 1204143 is about 106.3880107376.

Adding to 1204143 its reverse (3414021), we get a palindrome (4618164).

The spelling of 1204143 in words is "one million, two hundred four thousand, one hundred forty-three".