981483561 has 24 divisors (see below), whose sum is σ = 1472030560. Its totient is φ = 653510592.

The previous prime is 981483553. The next prime is 981483583. The reversal of 981483561 is 165384189.

981483561 is a `hidden beast` number, since 9 + 8 + 1 + 4 + 83 + 561 = 666.

It is not a de Polignac number, because 981483561 - 2³ = 981483553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (981481561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 243186 + ... + 247188.

Almost surely, 2^981483561 is an apocalyptic number.

It is an amenable number.

981483561 is a deficient number, since it is larger than the sum of its proper divisors (490546999).

981483561 is a wasteful number, since it uses less digits than its factorization.

981483561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5027 (or 5015 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 981483561 is about 31328.6380329564. The cubic root of 981483561 is about 993.7893614883.

The spelling of 981483561 in words is "nine hundred eighty-one million, four hundred eighty-three thousand, five hundred sixty-one".