47122049 has 4 divisors (see below), whose sum is σ = 50746836. Its totient is φ = 43497264.

The previous prime is 47122043. The next prime is 47122063. The reversal of 47122049 is 94022174.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94022174 = 2 ⋅47011087.

It can be written as a sum of positive squares in 2 ways, for example, as 31281649 + 15840400 = 5593^2 + 3980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47122049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47122043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1812374 + ... + 1812399.

It is an arithmetic number, because the mean of its divisors is an integer number (12686709).

Almost surely, 2^47122049 is an apocalyptic number.

It is an amenable number.

47122049 is a deficient number, since it is larger than the sum of its proper divisors (3624787).

47122049 is a wasteful number, since it uses less digits than its factorization.

47122049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3624786.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 47122049 is about 6864.5501673453. The cubic root of 47122049 is about 361.1947164597.

The spelling of 47122049 in words is "forty-seven million, one hundred twenty-two thousand, forty-nine".