143684223 has 4 divisors (see below), whose sum is σ = 191578968. Its totient is φ = 95789480.

The previous prime is 143684159. The next prime is 143684231. The reversal of 143684223 is 322486341.

143684223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322486341 = 3 ⋅107495447.

It is a cyclic number.

It is not a de Polignac number, because 143684223 - 2⁶ = 143684159 is a prime.

It is a super-2 number, since 2×143684223² = 41290311878227458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143684273) 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, 23947368 + ... + 23947373.

It is an arithmetic number, because the mean of its divisors is an integer number (47894742).

Almost surely, 2^143684223 is an apocalyptic number.

143684223 is a deficient number, since it is larger than the sum of its proper divisors (47894745).

143684223 is an equidigital number, since it uses as much as digits as its factorization.

143684223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47894744.

The product of its digits is 27648, while the sum is 33.

The square root of 143684223 is about 11986.8354038921. The cubic root of 143684223 is about 523.7648642501.

The spelling of 143684223 in words is "one hundred forty-three million, six hundred eighty-four thousand, two hundred twenty-three".