47471131 has 2 divisors, whose sum is σ = 47471132. Its totient is φ = 47471130.

The previous prime is 47471129. The next prime is 47471147. The reversal of 47471131 is 13117474.

47471131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47471131 - 2¹ = 47471129 is a prime.

It is a super-2 number, since 2×47471131² = 4507016556838322, which contains 22 as substring.

Together with 47471129, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 47471131.

It is not a weakly prime, because it can be changed into another prime (47471161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23735565 + 23735566.

It is an arithmetic number, because the mean of its divisors is an integer number (23735566).

Almost surely, 2^47471131 is an apocalyptic number.

47471131 is a deficient number, since it is larger than the sum of its proper divisors (1).

47471131 is an equidigital number, since it uses as much as digits as its factorization.

47471131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2352, while the sum is 28.

The square root of 47471131 is about 6889.9296803378. The cubic root of 47471131 is about 362.0844379406.

The spelling of 47471131 in words is "forty-seven million, four hundred seventy-one thousand, one hundred thirty-one".