80881281 has 16 divisors (see below), whose sum is σ = 129041920. Its totient is φ = 49772880.

The previous prime is 80881279. The next prime is 80881301. The reversal of 80881281 is 18218808.

It is a happy number.

It is not a de Polignac number, because 80881281 - 2¹ = 80881279 is a prime.

It is a super-3 number, since 3×80881281³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80881211) 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, 114865 + ... + 115566.

It is an arithmetic number, because the mean of its divisors is an integer number (8065120).

Almost surely, 2^80881281 is an apocalyptic number.

It is an amenable number.

80881281 is a deficient number, since it is larger than the sum of its proper divisors (48160639).

80881281 is a wasteful number, since it uses less digits than its factorization.

80881281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230453 (or 230447 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 36.

The square root of 80881281 is about 8993.4020815262. The cubic root of 80881281 is about 432.4633820224.

The spelling of 80881281 in words is "eighty million, eight hundred eighty-one thousand, two hundred eighty-one".