80072231 has 4 divisors (see below), whose sum is σ = 80154672. Its totient is φ = 79989792.

The previous prime is 80072189. The next prime is 80072233. The reversal of 80072231 is 13227008.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80072231 is a prime.

It is a super-2 number, since 2×80072231² = 12823124354634722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80072197 and 80072206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80072233) 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, 39746 + ... + 41711.

It is an arithmetic number, because the mean of its divisors is an integer number (20038668).

Almost surely, 2^80072231 is an apocalyptic number.

80072231 is a deficient number, since it is larger than the sum of its proper divisors (82441).

80072231 is an equidigital number, since it uses as much as digits as its factorization.

80072231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82440.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 80072231 is about 8948.3088346346. The cubic root of 80072231 is about 431.0165798070.

Adding to 80072231 its reverse (13227008), we get a palindrome (93299239).

The spelling of 80072231 in words is "eighty million, seventy-two thousand, two hundred thirty-one".