46381 has 2 divisors, whose sum is σ = 46382. Its totient is φ = 46380.

The previous prime is 46351. The next prime is 46399. The reversal of 46381 is 18364.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42025 + 4356 = 205^2 + 66^2 .

It is a cyclic number.

It is not a de Polignac number, because 46381 - 2⁵ = 46349 is a prime.

It is a super-2 number, since 2×46381² = 4302394322, which contains 22 as substring.

It is a Chen prime.

It is a nialpdrome in base 6 and base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23190 + 23191.

It is an arithmetic number, because the mean of its divisors is an integer number (23191).

2⁴⁶³⁸¹ is an apocalyptic number.

It is an amenable number.

46381 is a deficient number, since it is larger than the sum of its proper divisors (1).

46381 is an equidigital number, since it uses as much as digits as its factorization.

46381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 22.

The square root of 46381 is about 215.3624851268. The cubic root of 46381 is about 35.9291301239.

The spelling of 46381 in words is "forty-six thousand, three hundred eighty-one".