80134531 has 2 divisors, whose sum is σ = 80134532. Its totient is φ = 80134530.

The previous prime is 80134529. The next prime is 80134589. The reversal of 80134531 is 13543108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80134531 - 2¹ = 80134529 is a prime.

It is a super-2 number, since 2×80134531² = 12843086117179922, which contains 22 as substring.

Together with 80134529, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 80134496 and 80134505.

It is not a weakly prime, because it can be changed into another prime (80134501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40067265 + 40067266.

It is an arithmetic number, because the mean of its divisors is an integer number (40067266).

Almost surely, 2^80134531 is an apocalyptic number.

80134531 is a deficient number, since it is larger than the sum of its proper divisors (1).

80134531 is an equidigital number, since it uses as much as digits as its factorization.

80134531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 80134531 is about 8951.7892624883. The cubic root of 80134531 is about 431.1283346208.

Adding to 80134531 its reverse (13543108), we get a palindrome (93677639).

It can be divided in two parts, 8013 and 4531, that added together give a square (12544 = 112²).

The spelling of 80134531 in words is "eighty million, one hundred thirty-four thousand, five hundred thirty-one".