447000143 has 4 divisors (see below), whose sum is σ = 447622560. Its totient is φ = 446377728.

The previous prime is 447000119. The next prime is 447000181. The reversal of 447000143 is 341000744.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 447000143 - 2¹² = 446996047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447000643) 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, 310130 + ... + 311567.

It is an arithmetic number, because the mean of its divisors is an integer number (111905640).

Almost surely, 2^447000143 is an apocalyptic number.

447000143 is a deficient number, since it is larger than the sum of its proper divisors (622417).

447000143 is an equidigital number, since it uses as much as digits as its factorization.

447000143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622416.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 447000143 is about 21142.3778936997. The cubic root of 447000143 is about 764.6028057562.

Adding to 447000143 its reverse (341000744), we get a palindrome (788000887).

The spelling of 447000143 in words is "four hundred forty-seven million, one hundred forty-three", and thus it is an aban number.