1229884143 has 4 divisors (see below), whose sum is σ = 1639845528. Its totient is φ = 819922760.

The previous prime is 1229884069. The next prime is 1229884189. The reversal of 1229884143 is 3414889221.

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 1229884143 - 2⁹ = 1229883631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1229884095 and 1229884104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229884343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204980688 + ... + 204980693.

It is an arithmetic number, because the mean of its divisors is an integer number (409961382).

Almost surely, 2^1229884143 is an apocalyptic number.

1229884143 is a deficient number, since it is larger than the sum of its proper divisors (409961385).

1229884143 is an equidigital number, since it uses as much as digits as its factorization.

1229884143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409961384.

The product of its digits is 110592, while the sum is 42.

The square root of 1229884143 is about 35069.7040620533. The cubic root of 1229884143 is about 1071.4076279919.

The spelling of 1229884143 in words is "one billion, two hundred twenty-nine million, eight hundred eighty-four thousand, one hundred forty-three".