143878243 has 2 divisors, whose sum is σ = 143878244. Its totient is φ = 143878242.

The previous prime is 143878187. The next prime is 143878249. The reversal of 143878243 is 342878341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 143878243 - 2⁹ = 143877731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143878196 and 143878205.

It is not a weakly prime, because it can be changed into another prime (143878249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71939121 + 71939122.

It is an arithmetic number, because the mean of its divisors is an integer number (71939122).

Almost surely, 2^143878243 is an apocalyptic number.

143878243 is a deficient number, since it is larger than the sum of its proper divisors (1).

143878243 is an equidigital number, since it uses as much as digits as its factorization.

143878243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 40.

The square root of 143878243 is about 11994.9257188196. The cubic root of 143878243 is about 524.0005086626. Note that the first 3 decimals are identical.

The spelling of 143878243 in words is "one hundred forty-three million, eight hundred seventy-eight thousand, two hundred forty-three".