47188136 has 16 divisors (see below), whose sum is σ = 89929140. Its totient is φ = 23207040.

The previous prime is 47188121. The next prime is 47188139. The reversal of 47188136 is 63188174.

It can be written as a sum of positive squares in 2 ways, for example, as 38812900 + 8375236 = 6230^2 + 2894^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47188136.

It is not an unprimeable number, because it can be changed into a prime (47188139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47861 + ... + 48836.

Almost surely, 2^47188136 is an apocalyptic number.

It is an amenable number.

47188136 is a deficient number, since it is larger than the sum of its proper divisors (42741004).

47188136 is a wasteful number, since it uses less digits than its factorization.

47188136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96764 (or 96760 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 47188136 is about 6869.3621246809. The cubic root of 47188136 is about 361.3634918373.

Adding to 47188136 its sum of digits (38), we get a palindrome (47188174).

The spelling of 47188136 in words is "forty-seven million, one hundred eighty-eight thousand, one hundred thirty-six".