47645122 has 64 divisors (see below), whose sum is σ = 91054080. Its totient is φ = 18242496.

The previous prime is 47645119. The next prime is 47645123. The reversal of 47645122 is 22154674.

It is not an unprimeable number, because it can be changed into a prime (47645123) 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 31 ways as a sum of consecutive naturals, for example, 462523 + ... + 462625.

It is an arithmetic number, because the mean of its divisors is an integer number (1422720).

Almost surely, 2^47645122 is an apocalyptic number.

47645122 is a deficient number, since it is larger than the sum of its proper divisors (43408958).

47645122 is a wasteful number, since it uses less digits than its factorization.

47645122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215.

The product of its digits is 13440, while the sum is 31.

The square root of 47645122 is about 6902.5446032605. The cubic root of 47645122 is about 362.5262687266.

Adding to 47645122 its reverse (22154674), we get a palindrome (69799796).

The spelling of 47645122 in words is "forty-seven million, six hundred forty-five thousand, one hundred twenty-two".