143942863 has 4 divisors (see below), whose sum is σ = 148906440. Its totient is φ = 138979288.

The previous prime is 143942857. The next prime is 143942881. The reversal of 143942863 is 368249341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368249341 = 31 ⋅11879011.

It is a cyclic number.

It is not a de Polignac number, because 143942863 - 2¹⁷ = 143811791 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 (143942563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2481745 + ... + 2481802.

It is an arithmetic number, because the mean of its divisors is an integer number (37226610).

Almost surely, 2^143942863 is an apocalyptic number.

143942863 is a deficient number, since it is larger than the sum of its proper divisors (4963577).

143942863 is an equidigital number, since it uses as much as digits as its factorization.

143942863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4963576.

The product of its digits is 124416, while the sum is 40.

The square root of 143942863 is about 11997.6190554626. The cubic root of 143942863 is about 524.0789449944.

The spelling of 143942863 in words is "one hundred forty-three million, nine hundred forty-two thousand, eight hundred sixty-three".