143631163 has 4 divisors (see below), whose sum is σ = 154679728. Its totient is φ = 132582600.

The previous prime is 143631157. The next prime is 143631167. The reversal of 143631163 is 361136341.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143631163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143631167) 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, 5524263 + ... + 5524288.

It is an arithmetic number, because the mean of its divisors is an integer number (38669932).

Almost surely, 2^143631163 is an apocalyptic number.

143631163 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

143631163 is a deficient number, since it is larger than the sum of its proper divisors (11048565).

143631163 is a wasteful number, since it uses less digits than its factorization.

143631163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11048564.

The product of its digits is 3888, while the sum is 28.

The square root of 143631163 is about 11984.6219381339. The cubic root of 143631163 is about 523.7003839967.

The spelling of 143631163 in words is "one hundred forty-three million, six hundred thirty-one thousand, one hundred sixty-three".