80881261 has 8 divisors (see below), whose sum is σ = 84921120. Its totient is φ = 76924848.

The previous prime is 80881249. The next prime is 80881267. The reversal of 80881261 is 16218808.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80881261 - 2¹¹ = 80879213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80881267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18871 + ... + 22756.

It is an arithmetic number, because the mean of its divisors is an integer number (10615140).

Almost surely, 2^80881261 is an apocalyptic number.

It is an amenable number.

80881261 is a deficient number, since it is larger than the sum of its proper divisors (4039859).

80881261 is a wasteful number, since it uses less digits than its factorization.

80881261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41723.

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 80881261 is about 8993.4009695999. The cubic root of 80881261 is about 432.4633463764.

The spelling of 80881261 in words is "eighty million, eight hundred eighty-one thousand, two hundred sixty-one".