80185123 has 2 divisors, whose sum is σ = 80185124. Its totient is φ = 80185122.

The previous prime is 80185117. The next prime is 80185159. The reversal of 80185123 is 32158108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80185123 - 2²⁵ = 46630691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80185091 and 80185100.

It is not a weakly prime, because it can be changed into another prime (80185103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40092561 + 40092562.

It is an arithmetic number, because the mean of its divisors is an integer number (40092562).

Almost surely, 2^80185123 is an apocalyptic number.

80185123 is a deficient number, since it is larger than the sum of its proper divisors (1).

80185123 is an equidigital number, since it uses as much as digits as its factorization.

80185123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 80185123 is about 8954.6146204066. The cubic root of 80185123 is about 431.2190448130.

It can be divided in two parts, 80185 and 123, that added together give a palindrome (80308).

The spelling of 80185123 in words is "eighty million, one hundred eighty-five thousand, one hundred twenty-three".