945481 has 2 divisors, whose sum is σ = 945482. Its totient is φ = 945480.

The previous prime is 945479. The next prime is 945521. The reversal of 945481 is 184549.

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., 781456 + 164025 = 884^2 + 405^2 .

It is a cyclic number.

It is not a de Polignac number, because 945481 - 2¹ = 945479 is a prime.

It is a super-2 number, since 2×945481² = 1787868642722, which contains 22 as substring.

Together with 945479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (945431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472740 + 472741.

It is an arithmetic number, because the mean of its divisors is an integer number (472741).

2⁹⁴⁵⁴⁸¹ is an apocalyptic number.

It is an amenable number.

945481 is a deficient number, since it is larger than the sum of its proper divisors (1).

945481 is an equidigital number, since it uses as much as digits as its factorization.

945481 is an odious number, because the sum of its binary digits is odd.

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

The square root of 945481 is about 972.3584729923. The cubic root of 945481 is about 98.1486360361.

It can be divided in two parts, 94548 and 1, that added together give a palindrome (94549).

The spelling of 945481 in words is "nine hundred forty-five thousand, four hundred eighty-one".