143643371 has 2 divisors, whose sum is σ = 143643372. Its totient is φ = 143643370.

The previous prime is 143643337. The next prime is 143643389. The reversal of 143643371 is 173346341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 143643371 - 2¹⁰ = 143642347 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (143643391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71821685 + 71821686.

It is an arithmetic number, because the mean of its divisors is an integer number (71821686).

Almost surely, 2^143643371 is an apocalyptic number.

143643371 is a deficient number, since it is larger than the sum of its proper divisors (1).

143643371 is an equidigital number, since it uses as much as digits as its factorization.

143643371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 32.

The square root of 143643371 is about 11985.1312466739. The cubic root of 143643371 is about 523.7152209653.

The spelling of 143643371 in words is "one hundred forty-three million, six hundred forty-three thousand, three hundred seventy-one".