47042113 has 2 divisors, whose sum is σ = 47042114. Its totient is φ = 47042112.

The previous prime is 47042053. The next prime is 47042117. The reversal of 47042113 is 31124074.

47042113 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., 38787984 + 8254129 = 6228^2 + 2873^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47042113 is a prime.

It is not a weakly prime, because it can be changed into another prime (47042117) 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, 23521056 + 23521057.

It is an arithmetic number, because the mean of its divisors is an integer number (23521057).

Almost surely, 2^47042113 is an apocalyptic number.

It is an amenable number.

47042113 is a deficient number, since it is larger than the sum of its proper divisors (1).

47042113 is an equidigital number, since it uses as much as digits as its factorization.

47042113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 47042113 is about 6858.7253188913. The cubic root of 47042113 is about 360.9903620020.

Adding to 47042113 its reverse (31124074), we get a palindrome (78166187).

The spelling of 47042113 in words is "forty-seven million, forty-two thousand, one hundred thirteen".