47161172 has 6 divisors (see below), whose sum is σ = 82532058. Its totient is φ = 23580584.

The previous prime is 47161157. The next prime is 47161207. The reversal of 47161172 is 27116174.

It can be written as a sum of positive squares in only one way, i.e., 32307856 + 14853316 = 5684^2 + 3854^2 .

It is a super-2 number, since 2×47161172² = 4448352288827168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5895143 + ... + 5895150.

It is an arithmetic number, because the mean of its divisors is an integer number (13755343).

Almost surely, 2^47161172 is an apocalyptic number.

It is an amenable number.

47161172 is a deficient number, since it is larger than the sum of its proper divisors (35370886).

47161172 is a wasteful number, since it uses less digits than its factorization.

47161172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11790297 (or 11790295 counting only the distinct ones).

The product of its digits is 2352, while the sum is 29.

The square root of 47161172 is about 6867.3992165885. The cubic root of 47161172 is about 361.2946492388.

The spelling of 47161172 in words is "forty-seven million, one hundred sixty-one thousand, one hundred seventy-two".