47088161 has 4 divisors (see below), whose sum is σ = 48360852. Its totient is φ = 45815472.

The previous prime is 47088143. The next prime is 47088191. The reversal of 47088161 is 16188074.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42823936 + 4264225 = 6544^2 + 2065^2 .

It is a de Polignac number, because none of the positive numbers 2^k-47088161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47088121) 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, 636290 + ... + 636363.

It is an arithmetic number, because the mean of its divisors is an integer number (12090213).

Almost surely, 2^47088161 is an apocalyptic number.

It is an amenable number.

47088161 is a deficient number, since it is larger than the sum of its proper divisors (1272691).

47088161 is a wasteful number, since it uses less digits than its factorization.

47088161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272690.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 47088161 is about 6862.0813897825. The cubic root of 47088161 is about 361.1081108460.

The spelling of 47088161 in words is "forty-seven million, eighty-eight thousand, one hundred sixty-one".