80481291 has 16 divisors (see below), whose sum is σ = 117963648. Its totient is φ = 48401600.

The previous prime is 80481263. The next prime is 80481299. The reversal of 80481291 is 19218408.

It is a cyclic number.

It is not a de Polignac number, because 80481291 - 2²⁶ = 13372427 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (80481299) 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, 4986 + ... + 13631.

It is an arithmetic number, because the mean of its divisors is an integer number (7372728).

Almost surely, 2^80481291 is an apocalyptic number.

80481291 is a deficient number, since it is larger than the sum of its proper divisors (37482357).

80481291 is a wasteful number, since it uses less digits than its factorization.

80481291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18762.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 80481291 is about 8971.1365500699. The cubic root of 80481291 is about 431.7493026321.

Adding to 80481291 its reverse (19218408), we get a palindrome (99699699).

It can be divided in two parts, 8048 and 1291, that added together give a palindrome (9339).

The spelling of 80481291 in words is "eighty million, four hundred eighty-one thousand, two hundred ninety-one".