47471129 has 2 divisors, whose sum is σ = 47471130. Its totient is φ = 47471128.

The previous prime is 47471119. The next prime is 47471131. The reversal of 47471129 is 92117474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44249104 + 3222025 = 6652^2 + 1795^2 .

It is a cyclic number.

It is not a de Polignac number, because 47471129 - 2¹² = 47467033 is a prime.

Together with 47471131, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47471119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23735564 + 23735565.

It is an arithmetic number, because the mean of its divisors is an integer number (23735565).

Almost surely, 2^47471129 is an apocalyptic number.

It is an amenable number.

47471129 is a deficient number, since it is larger than the sum of its proper divisors (1).

47471129 is an equidigital number, since it uses as much as digits as its factorization.

47471129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 35.

The square root of 47471129 is about 6889.9295351985. The cubic root of 47471129 is about 362.0844328556.

The spelling of 47471129 in words is "forty-seven million, four hundred seventy-one thousand, one hundred twenty-nine".