143696871 has 6 divisors (see below), whose sum is σ = 207562160. Its totient is φ = 95797908.

The previous prime is 143696857. The next prime is 143696879. The reversal of 143696871 is 178696341.

It is a happy number.

It is not a de Polignac number, because 143696871 - 2⁷ = 143696743 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 (143696879) 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 5 ways as a sum of consecutive naturals, for example, 7983151 + ... + 7983168.

Almost surely, 2^143696871 is an apocalyptic number.

143696871 is a deficient number, since it is larger than the sum of its proper divisors (63865289).

143696871 is a wasteful number, since it uses less digits than its factorization.

143696871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15966325 (or 15966322 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 143696871 is about 11987.3629710625. The cubic root of 143696871 is about 523.7802321717.

The spelling of 143696871 in words is "one hundred forty-three million, six hundred ninety-six thousand, eight hundred seventy-one".