143813671 has 4 divisors (see below), whose sum is σ = 145157832. Its totient is φ = 142469512.

The previous prime is 143813651. The next prime is 143813699. The reversal of 143813671 is 176318341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176318341 = 4259 ⋅41399.

It is a cyclic number.

It is not a de Polignac number, because 143813671 - 2¹¹ = 143811623 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 (143813611) 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, 671920 + ... + 672133.

It is an arithmetic number, because the mean of its divisors is an integer number (36289458).

Almost surely, 2^143813671 is an apocalyptic number.

143813671 is a deficient number, since it is larger than the sum of its proper divisors (1344161).

143813671 is a wasteful number, since it uses less digits than its factorization.

143813671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344160.

The product of its digits is 12096, while the sum is 34.

The square root of 143813671 is about 11992.2337785752. The cubic root of 143813671 is about 523.9221071308.

The spelling of 143813671 in words is "one hundred forty-three million, eight hundred thirteen thousand, six hundred seventy-one".