47222137 has 2 divisors, whose sum is σ = 47222138. Its totient is φ = 47222136.

The previous prime is 47222117. The next prime is 47222159. The reversal of 47222137 is 73122274.

47222137 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., 30074256 + 17147881 = 5484^2 + 4141^2 .

It is a cyclic number.

It is not a de Polignac number, because 47222137 - 2⁷ = 47222009 is a prime.

It is not a weakly prime, because it can be changed into another prime (47222117) 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, 23611068 + 23611069.

It is an arithmetic number, because the mean of its divisors is an integer number (23611069).

Almost surely, 2^47222137 is an apocalyptic number.

It is an amenable number.

47222137 is a deficient number, since it is larger than the sum of its proper divisors (1).

47222137 is an equidigital number, since it uses as much as digits as its factorization.

47222137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4704, while the sum is 28.

The square root of 47222137 is about 6871.8365085325. The cubic root of 47222137 is about 361.4502634376.

It can be divided in two parts, 4722 and 2137, that added together give a cube (6859 = 19³).

The spelling of 47222137 in words is "forty-seven million, two hundred twenty-two thousand, one hundred thirty-seven".