47245613 has 2 divisors, whose sum is σ = 47245614. Its totient is φ = 47245612.

The previous prime is 47245591. The next prime is 47245621. The reversal of 47245613 is 31654274.

47245613 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., 37429924 + 9815689 = 6118^2 + 3133^2 .

It is a cyclic number.

It is not a de Polignac number, because 47245613 - 2⁸ = 47245357 is a prime.

It is equal to p_2845553 and since 47245613 and 2845553 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47245613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47245663) 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, 23622806 + 23622807.

It is an arithmetic number, because the mean of its divisors is an integer number (23622807).

Almost surely, 2^47245613 is an apocalyptic number.

It is an amenable number.

47245613 is a deficient number, since it is larger than the sum of its proper divisors (1).

47245613 is an equidigital number, since it uses as much as digits as its factorization.

47245613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 32.

The square root of 47245613 is about 6873.5444277316. The cubic root of 47245613 is about 361.5101506090.

Adding to 47245613 its reverse (31654274), we get a palindrome (78899887).

The spelling of 47245613 in words is "forty-seven million, two hundred forty-five thousand, six hundred thirteen".