47549129 has 2 divisors, whose sum is σ = 47549130. Its totient is φ = 47549128.

The previous prime is 47549111. The next prime is 47549137. The reversal of 47549129 is 92194574.

47549129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25270729 + 22278400 = 5027^2 + 4720^2 .

It is a cyclic number.

It is not a de Polignac number, because 47549129 - 2²⁴ = 30771913 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47549729) 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, 23774564 + 23774565.

It is an arithmetic number, because the mean of its divisors is an integer number (23774565).

Almost surely, 2^47549129 is an apocalyptic number.

It is an amenable number.

47549129 is a deficient number, since it is larger than the sum of its proper divisors (1).

47549129 is an equidigital number, since it uses as much as digits as its factorization.

47549129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The square root of 47549129 is about 6895.5876471842. The cubic root of 47549129 is about 362.2826384595.

The spelling of 47549129 in words is "forty-seven million, five hundred forty-nine thousand, one hundred twenty-nine".