1042143999 has 8 divisors (see below), whose sum is σ = 1496411952. Its totient is φ = 641319360.

The previous prime is 1042143997. The next prime is 1042144003. The reversal of 1042143999 is 9993412401.

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

It is not a de Polignac number, because 1042143999 - 2¹ = 1042143997 is a prime.

It is a super-2 number, since 2×1042143999² = 2172128229303424002, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1042143999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042143997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13360782 + ... + 13360859.

It is an arithmetic number, because the mean of its divisors is an integer number (187051494).

Almost surely, 2^1042143999 is an apocalyptic number.

1042143999 is a deficient number, since it is larger than the sum of its proper divisors (454267953).

1042143999 is a wasteful number, since it uses less digits than its factorization.

1042143999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26721657.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 1042143999 is about 32282.2551721530. The cubic root of 1042143999 is about 1013.8551479729.

The spelling of 1042143999 in words is "one billion, forty-two million, one hundred forty-three thousand, nine hundred ninety-nine".