447157143 has 12 divisors (see below), whose sum is σ = 654070560. Its totient is φ = 294330816.

The previous prime is 447157133. The next prime is 447157157. The reversal of 447157143 is 341751744.

447157143 is a `hidden beast` number, since 4 + 47 + 1 + 571 + 43 = 666.

It is not a de Polignac number, because 447157143 - 2²¹ = 445059991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 447157098 and 447157107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447157133) 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, 313746 + ... + 315167.

It is an arithmetic number, because the mean of its divisors is an integer number (54505880).

Almost surely, 2^447157143 is an apocalyptic number.

447157143 is a deficient number, since it is larger than the sum of its proper divisors (206913417).

447157143 is a wasteful number, since it uses less digits than its factorization.

447157143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628998 (or 628995 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 447157143 is about 21146.0904897336. The cubic root of 447157143 is about 764.6923125053.

The spelling of 447157143 in words is "four hundred forty-seven million, one hundred fifty-seven thousand, one hundred forty-three".