80195231 has 2 divisors, whose sum is σ = 80195232. Its totient is φ = 80195230.

The previous prime is 80195197. The next prime is 80195249. The reversal of 80195231 is 13259108.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80195231 is a prime.

It is a super-2 number, since 2×80195231² = 12862550150286722, which contains 22 as substring.

It is a Chen prime.

It is equal to p_4680047 and since 80195231 and 4680047 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 80195194 and 80195203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80195131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40097615 + 40097616.

It is an arithmetic number, because the mean of its divisors is an integer number (40097616).

Almost surely, 2^80195231 is an apocalyptic number.

80195231 is a deficient number, since it is larger than the sum of its proper divisors (1).

80195231 is an equidigital number, since it uses as much as digits as its factorization.

80195231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 80195231 is about 8955.1790043527. The cubic root of 80195231 is about 431.2371636311.

The spelling of 80195231 in words is "eighty million, one hundred ninety-five thousand, two hundred thirty-one".