547317481 has 2 divisors, whose sum is σ = 547317482. Its totient is φ = 547317480.

The previous prime is 547317479. The next prime is 547317503. The reversal of 547317481 is 184713745.

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., 528264256 + 19053225 = 22984^2 + 4365^2 .

It is a cyclic number.

It is not a de Polignac number, because 547317481 - 2¹ = 547317479 is a prime.

It is a super-2 number, since 2×547317481² = 599112850016370722, which contains 22 as substring.

Together with 547317479, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (547317181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273658740 + 273658741.

It is an arithmetic number, because the mean of its divisors is an integer number (273658741).

Almost surely, 2^547317481 is an apocalyptic number.

It is an amenable number.

547317481 is a deficient number, since it is larger than the sum of its proper divisors (1).

547317481 is an equidigital number, since it uses as much as digits as its factorization.

547317481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 40.

The square root of 547317481 is about 23394.8173961670. The cubic root of 547317481 is about 817.9870719477.

The spelling of 547317481 in words is "five hundred forty-seven million, three hundred seventeen thousand, four hundred eighty-one".