1147471047 has 24 divisors (see below), whose sum is σ = 1791856560. Its totient is φ = 705127680.

The previous prime is 1147471007. The next prime is 1147471063. The reversal of 1147471047 is 7401747411.

1147471047 is a `hidden beast` number, since 1 + 147 + 471 + 0 + 47 = 666.

It is not a de Polignac number, because 1147471047 - 2⁸ = 1147470791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147471007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84354 + ... + 97007.

It is an arithmetic number, because the mean of its divisors is an integer number (74660690).

Almost surely, 2^1147471047 is an apocalyptic number.

1147471047 is a deficient number, since it is larger than the sum of its proper divisors (644385513).

1147471047 is a wasteful number, since it uses less digits than its factorization.

1147471047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181423 (or 181420 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 1147471047 is about 33874.3420157499. The cubic root of 1147471047 is about 1046.9210018036.

The spelling of 1147471047 in words is "one billion, one hundred forty-seven million, four hundred seventy-one thousand, forty-seven".