47283149 has 4 divisors (see below), whose sum is σ = 47556636. Its totient is φ = 47009664.

The previous prime is 47283143. The next prime is 47283157. The reversal of 47283149 is 94138274.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31561924 + 15721225 = 5618^2 + 3965^2 .

It is a cyclic number.

It is not a de Polignac number, because 47283149 - 2⁴ = 47283133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47283143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136484 + ... + 136829.

It is an arithmetic number, because the mean of its divisors is an integer number (11889159).

Almost surely, 2^47283149 is an apocalyptic number.

It is an amenable number.

47283149 is a deficient number, since it is larger than the sum of its proper divisors (273487).

47283149 is a wasteful number, since it uses less digits than its factorization.

47283149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273486.

The product of its digits is 48384, while the sum is 38.

The square root of 47283149 is about 6876.2743546197. The cubic root of 47283149 is about 361.6058635729.

The spelling of 47283149 in words is "forty-seven million, two hundred eighty-three thousand, one hundred forty-nine".