80403161 has 4 divisors (see below), whose sum is σ = 80424192. Its totient is φ = 80382132.

The previous prime is 80403157. The next prime is 80403187. The reversal of 80403161 is 16130408.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80403161 - 2² = 80403157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80403131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2981 + ... + 13026.

It is an arithmetic number, because the mean of its divisors is an integer number (20106048).

Almost surely, 2^80403161 is an apocalyptic number.

It is an amenable number.

80403161 is a deficient number, since it is larger than the sum of its proper divisors (21031).

80403161 is a wasteful number, since it uses less digits than its factorization.

80403161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21030.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 80403161 is about 8966.7809720100. The cubic root of 80403161 is about 431.6095455359.

Adding to 80403161 its reverse (16130408), we get a palindrome (96533569).

The spelling of 80403161 in words is "eighty million, four hundred three thousand, one hundred sixty-one".