80172231 has 8 divisors (see below), whose sum is σ = 110344704. Its totient is φ = 51723960.

The previous prime is 80172223. The next prime is 80172299. The reversal of 80172231 is 13227108.

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

It is not a de Polignac number, because 80172231 - 2³ = 80172223 is a prime.

It is a super-2 number, since 2×80172231² = 12855173247034722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80173231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430941 + ... + 431126.

It is an arithmetic number, because the mean of its divisors is an integer number (13793088).

Almost surely, 2^80172231 is an apocalyptic number.

80172231 is a deficient number, since it is larger than the sum of its proper divisors (30172473).

80172231 is a wasteful number, since it uses less digits than its factorization.

80172231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862101.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 80172231 is about 8953.8947391624. The cubic root of 80172231 is about 431.1959334025.

Adding to 80172231 its reverse (13227108), we get a palindrome (93399339).

The spelling of 80172231 in words is "eighty million, one hundred seventy-two thousand, two hundred thirty-one".