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46181 is a prime number

46181 has 2 divisors, whose sum is σ = 46182. Its totient is φ = 46180.

The previous prime is 46171. The next prime is 46183. The reversal of 46181 is 18164.

46181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43681 + 2500 = 209^2 + 50^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-46181 is a prime.

It is a super-2 number, since 2×461812 = 4265369522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 46183, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 46181.

It is not a weakly prime, because it can be changed into another prime (46183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23090 + 23091.

It is an arithmetic number, because the mean of its divisors is an integer number (23091).

246181 is an apocalyptic number.

It is an amenable number.

46181 is a deficient number, since it is larger than the sum of its proper divisors (1).

46181 is an equidigital number, since it uses as much as digits as its factorization.

46181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 20.

The square root of 46181 is about 214.8976500570. The cubic root of 46181 is about 35.8774122543.

The spelling of 46181 in words is "forty-six thousand, one hundred eighty-one".