47145361 has 2 divisors, whose sum is σ = 47145362. Its totient is φ = 47145360.

The previous prime is 47145359. The next prime is 47145391. The reversal of 47145361 is 16354174.

47145361 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., 47004736 + 140625 = 6856^2 + 375^2 .

It is a cyclic number.

It is not a de Polignac number, because 47145361 - 2¹ = 47145359 is a prime.

Together with 47145359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (47145311) 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, 23572680 + 23572681.

It is an arithmetic number, because the mean of its divisors is an integer number (23572681).

Almost surely, 2^47145361 is an apocalyptic number.

It is an amenable number.

47145361 is a deficient number, since it is larger than the sum of its proper divisors (1).

47145361 is an equidigital number, since it uses as much as digits as its factorization.

47145361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 47145361 is about 6866.2479564898. The cubic root of 47145361 is about 361.2542694945.

The spelling of 47145361 in words is "forty-seven million, one hundred forty-five thousand, three hundred sixty-one".