47109512 has 16 divisors (see below), whose sum is σ = 92979600. Its totient is φ = 22314960.

The previous prime is 47109511. The next prime is 47109521. The reversal of 47109512 is 21590174.

47109512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×47109512² = 4438612241756288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47109511) 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 in 3 ways as a sum of consecutive naturals, for example, 154814 + ... + 155117.

It is an arithmetic number, because the mean of its divisors is an integer number (5811225).

Almost surely, 2^47109512 is an apocalyptic number.

It is an amenable number.

47109512 is a deficient number, since it is larger than the sum of its proper divisors (45870088).

47109512 is a wasteful number, since it uses less digits than its factorization.

47109512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309956 (or 309952 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 47109512 is about 6863.6369367850. The cubic root of 47109512 is about 361.1626812100.

Adding to 47109512 its reverse (21590174), we get a palindrome (68699686).

The spelling of 47109512 in words is "forty-seven million, one hundred nine thousand, five hundred twelve".