143427447 has 12 divisors (see below), whose sum is σ = 218077080. Its totient is φ = 90585648.

The previous prime is 143427443. The next prime is 143427451. The reversal of 143427447 is 744724341.

It is a happy number.

143427447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (143427443) and next prime (143427451).

It is not a de Polignac number, because 143427447 - 2² = 143427443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143427443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 419208 + ... + 419549.

It is an arithmetic number, because the mean of its divisors is an integer number (18173090).

Almost surely, 2^143427447 is an apocalyptic number.

143427447 is a deficient number, since it is larger than the sum of its proper divisors (74649633).

143427447 is a wasteful number, since it uses less digits than its factorization.

143427447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838782 (or 838779 counting only the distinct ones).

The product of its digits is 75264, while the sum is 36.

The square root of 143427447 is about 11976.1198641296. The cubic root of 143427447 is about 523.4526739975.

The spelling of 143427447 in words is "one hundred forty-three million, four hundred twenty-seven thousand, four hundred forty-seven".