1224000143 has 4 divisors (see below), whose sum is σ = 1224162480. Its totient is φ = 1223837808.

The previous prime is 1224000139. The next prime is 1224000149. The reversal of 1224000143 is 3410004221.

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 1224000143 - 2² = 1224000139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224000149) 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, 69278 + ... + 85131.

It is an arithmetic number, because the mean of its divisors is an integer number (306040620).

Almost surely, 2^1224000143 is an apocalyptic number.

1224000143 is a deficient number, since it is larger than the sum of its proper divisors (162337).

1224000143 is an equidigital number, since it uses as much as digits as its factorization.

1224000143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162336.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1224000143 is about 34985.7134127632. The cubic root of 1224000143 is about 1069.6962899054.

Adding to 1224000143 its reverse (3410004221), we get a palindrome (4634004364).

The spelling of 1224000143 in words is "one billion, two hundred twenty-four million, one hundred forty-three", and thus it is an aban number.