9405481 has 2 divisors, whose sum is σ = 9405482. Its totient is φ = 9405480.

The previous prime is 9405479. The next prime is 9405497. The reversal of 9405481 is 1845049.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7182400 + 2223081 = 2680^2 + 1491^2 .

It is an emirp because it is prime and its reverse (1845049) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9405481 - 2¹ = 9405479 is a prime.

It is a super-2 number, since 2×9405481² = 176926145682722, which contains 22 as substring.

Together with 9405479, it forms a pair of twin primes.

9405481 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (9405401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4702740 + 4702741.

It is an arithmetic number, because the mean of its divisors is an integer number (4702741).

Almost surely, 2^9405481 is an apocalyptic number.

It is an amenable number.

9405481 is a deficient number, since it is larger than the sum of its proper divisors (1).

9405481 is an equidigital number, since it uses as much as digits as its factorization.

9405481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 9405481 is about 3066.8356656332. The cubic root of 9405481 is about 211.0864406279.

The spelling of 9405481 in words is "nine million, four hundred five thousand, four hundred eighty-one".