80542031 has 2 divisors, whose sum is σ = 80542032. Its totient is φ = 80542030.

The previous prime is 80542027. The next prime is 80542043. The reversal of 80542031 is 13024508.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80542031 - 2² = 80542027 is a prime.

It is a super-2 number, since 2×80542031² = 12974037515209922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80541988 and 80542006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80542051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40271015 + 40271016.

It is an arithmetic number, because the mean of its divisors is an integer number (40271016).

Almost surely, 2^80542031 is an apocalyptic number.

80542031 is a deficient number, since it is larger than the sum of its proper divisors (1).

80542031 is an equidigital number, since it uses as much as digits as its factorization.

80542031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 80542031 is about 8974.5212128559. The cubic root of 80542031 is about 431.8578904285.

Adding to 80542031 its reverse (13024508), we get a palindrome (93566539).

The spelling of 80542031 in words is "eighty million, five hundred forty-two thousand, thirty-one".