475381 has 2 divisors, whose sum is σ = 475382. Its totient is φ = 475380.

The previous prime is 475379. The next prime is 475403. The reversal of 475381 is 183574.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 280900 + 194481 = 530^2 + 441^2 .

It is a cyclic number.

It is not a de Polignac number, because 475381 - 2¹ = 475379 is a prime.

It is a super-2 number, since 2×475381² = 451974190322, which contains 22 as substring.

Together with 475379, it forms a pair of twin primes.

475381 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (475301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237690 + 237691.

It is an arithmetic number, because the mean of its divisors is an integer number (237691).

2⁴⁷⁵³⁸¹ is an apocalyptic number.

It is an amenable number.

475381 is a deficient number, since it is larger than the sum of its proper divisors (1).

475381 is an equidigital number, since it uses as much as digits as its factorization.

475381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 28.

The square root of 475381 is about 689.4787886513. The cubic root of 475381 is about 78.0453932576.

The spelling of 475381 in words is "four hundred seventy-five thousand, three hundred eighty-one".