1078999143 has 32 divisors (see below), whose sum is σ = 1548211200. Its totient is φ = 667046016.

The previous prime is 1078999123. The next prime is 1078999147. The reversal of 1078999143 is 3419998701.

It is a happy number.

It is not a de Polignac number, because 1078999143 - 2¹⁰ = 1078998119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078999147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 252180 + ... + 256422.

It is an arithmetic number, because the mean of its divisors is an integer number (48381600).

Almost surely, 2^1078999143 is an apocalyptic number.

1078999143 is a deficient number, since it is larger than the sum of its proper divisors (469212057).

1078999143 is a wasteful number, since it uses less digits than its factorization.

1078999143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4391.

The product of its (nonzero) digits is 489888, while the sum is 51.

The square root of 1078999143 is about 32848.1223664306. The cubic root of 1078999143 is about 1025.6685364609.

The spelling of 1078999143 in words is "one billion, seventy-eight million, nine hundred ninety-nine thousand, one hundred forty-three".