1481558881 has 16 divisors (see below), whose sum is σ = 1654188480. Its totient is φ = 1315621120.

The previous prime is 1481558879. The next prime is 1481558887. The reversal of 1481558881 is 1888551841.

It is not a de Polignac number, because 1481558881 - 2¹ = 1481558879 is a prime.

It is a super-2 number, since 2×1481558881² = 4390033435739944322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1481558887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72141 + ... + 90373.

It is an arithmetic number, because the mean of its divisors is an integer number (103386780).

Almost surely, 2^1481558881 is an apocalyptic number.

1481558881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1481558881 is a deficient number, since it is larger than the sum of its proper divisors (172629599).

1481558881 is a wasteful number, since it uses less digits than its factorization.

1481558881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18416.

The product of its digits is 409600, while the sum is 49.

The square root of 1481558881 is about 38491.0233820822. The cubic root of 1481558881 is about 1140.0038168027.

The spelling of 1481558881 in words is "one billion, four hundred eighty-one million, five hundred fifty-eight thousand, eight hundred eighty-one".