80335121 has 4 divisors (see below), whose sum is σ = 81850932. Its totient is φ = 78819312.

The previous prime is 80335117. The next prime is 80335141. The reversal of 80335121 is 12153308.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52128400 + 28206721 = 7220^2 + 5311^2 .

It is a cyclic number.

It is not a de Polignac number, because 80335121 - 2² = 80335117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80335141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757826 + ... + 757931.

It is an arithmetic number, because the mean of its divisors is an integer number (20462733).

Almost surely, 2^80335121 is an apocalyptic number.

It is an amenable number.

80335121 is a deficient number, since it is larger than the sum of its proper divisors (1515811).

80335121 is a wasteful number, since it uses less digits than its factorization.

80335121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515810.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 80335121 is about 8962.9861653357. The cubic root of 80335121 is about 431.4877634205.

Adding to 80335121 its reverse (12153308), we get a palindrome (92488429).

The spelling of 80335121 in words is "eighty million, three hundred thirty-five thousand, one hundred twenty-one".