47149 has 2 divisors, whose sum is σ = 47150. Its totient is φ = 47148.

The previous prime is 47147. The next prime is 47161. The reversal of 47149 is 94174.

47149 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 can be written as a sum of positive squares in only one way, i.e., 24649 + 22500 = 157^2 + 150^2 .

It is a cyclic number.

It is not a de Polignac number, because 47149 - 2¹ = 47147 is a prime.

Together with 47147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23574 + 23575.

It is an arithmetic number, because the mean of its divisors is an integer number (23575).

2⁴⁷¹⁴⁹ is an apocalyptic number.

It is an amenable number.

47149 is a deficient number, since it is larger than the sum of its proper divisors (1).

47149 is an equidigital number, since it uses as much as digits as its factorization.

47149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 25.

The square root of 47149 is about 217.1382048374. The cubic root of 47149 is about 36.1263563944.

Adding to 47149 its sum of digits (25), we get a palindrome (47174).

It can be divided in two parts, 47 and 149, that added together give a square (196 = 14²).

The spelling of 47149 in words is "forty-seven thousand, one hundred forty-nine".