481793561 has 2 divisors, whose sum is σ = 481793562. Its totient is φ = 481793560.

The previous prime is 481793551. The next prime is 481793591. The reversal of 481793561 is 165397184.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 452838400 + 28955161 = 21280^2 + 5381^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481793561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (481793551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240896780 + 240896781.

It is an arithmetic number, because the mean of its divisors is an integer number (240896781).

Almost surely, 2^481793561 is an apocalyptic number.

It is an amenable number.

481793561 is a deficient number, since it is larger than the sum of its proper divisors (1).

481793561 is an equidigital number, since it uses as much as digits as its factorization.

481793561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 44.

The square root of 481793561 is about 21949.7963771876. The cubic root of 481793561 is about 783.9475319123.

The spelling of 481793561 in words is "four hundred eighty-one million, seven hundred ninety-three thousand, five hundred sixty-one".