47131136 has 80 divisors (see below), whose sum is σ = 103863144. Its totient is φ = 21233664.

The previous prime is 47131121. The next prime is 47131159. The reversal of 47131136 is 63113174.

It can be written as a sum of positive squares in 4 ways, for example, as 32993536 + 14137600 = 5744^2 + 3760^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485840 + ... + 485936.

Almost surely, 2^47131136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47131136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51931572).

47131136 is an abundant number, since it is smaller than the sum of its proper divisors (56732008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47131136 is an equidigital number, since it uses as much as digits as its factorization.

47131136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 185 counting only the distinct ones).

The product of its digits is 1512, while the sum is 26.

The square root of 47131136 is about 6865.2120142061. The cubic root of 47131136 is about 361.2179325231.

The spelling of 47131136 in words is "forty-seven million, one hundred thirty-one thousand, one hundred thirty-six".