143872247 has 2 divisors, whose sum is σ = 143872248. Its totient is φ = 143872246.

The previous prime is 143872213. The next prime is 143872273. The reversal of 143872247 is 742278341.

143872247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 143872247 - 2⁸ = 143871991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143872247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143872297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71936123 + 71936124.

It is an arithmetic number, because the mean of its divisors is an integer number (71936124).

Almost surely, 2^143872247 is an apocalyptic number.

143872247 is a deficient number, since it is larger than the sum of its proper divisors (1).

143872247 is an equidigital number, since it uses as much as digits as its factorization.

143872247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75264, while the sum is 38.

The square root of 143872247 is about 11994.6757771938. The cubic root of 143872247 is about 523.9932294737.

The spelling of 143872247 in words is "one hundred forty-three million, eight hundred seventy-two thousand, two hundred forty-seven".