481817641 has 2 divisors, whose sum is σ = 481817642. Its totient is φ = 481817640.

The previous prime is 481817551. The next prime is 481817657. The reversal of 481817641 is 146718184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 332880025 + 148937616 = 18245^2 + 12204^2 .

It is a cyclic number.

It is not a de Polignac number, because 481817641 - 2²¹ = 479720489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 481817594 and 481817603.

It is not a weakly prime, because it can be changed into another prime (481817741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240908820 + 240908821.

It is an arithmetic number, because the mean of its divisors is an integer number (240908821).

Almost surely, 2^481817641 is an apocalyptic number.

It is an amenable number.

481817641 is a deficient number, since it is larger than the sum of its proper divisors (1).

481817641 is an equidigital number, since it uses as much as digits as its factorization.

481817641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43008, while the sum is 40.

The square root of 481817641 is about 21950.3448947847. The cubic root of 481817641 is about 783.9605922378.

The spelling of 481817641 in words is "four hundred eighty-one million, eight hundred seventeen thousand, six hundred forty-one".