1005481 has 2 divisors, whose sum is σ = 1005482. Its totient is φ = 1005480.

The previous prime is 1005467. The next prime is 1005493. The reversal of 1005481 is 1845001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 793881 + 211600 = 891^2 + 460^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005481 - 2¹¹ = 1003433 is a prime.

It is a super-2 number, since 2×1005481² = 2021984082722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1005581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502740 + 502741.

It is an arithmetic number, because the mean of its divisors is an integer number (502741).

2^1005481 is an apocalyptic number.

It is an amenable number.

1005481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005481 is an equidigital number, since it uses as much as digits as its factorization.

1005481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1005481 is about 1002.7367550858. The cubic root of 1005481 is about 100.1823672198.

The spelling of 1005481 in words is "one million, five thousand, four hundred eighty-one".