80512845 has 64 divisors (see below), whose sum is σ = 154206720. Its totient is φ = 35094528.

The previous prime is 80512843. The next prime is 80512847. The reversal of 80512845 is 54821508.

It is an interprime number because it is at equal distance from previous prime (80512843) and next prime (80512847).

It is not a de Polignac number, because 80512845 - 2¹ = 80512843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80512843) 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 in 63 ways as a sum of consecutive naturals, for example, 417069 + ... + 417261.

It is an arithmetic number, because the mean of its divisors is an integer number (2409480).

Almost surely, 2^80512845 is an apocalyptic number.

It is an amenable number.

80512845 is a deficient number, since it is larger than the sum of its proper divisors (73693875).

80512845 is a wasteful number, since it uses less digits than its factorization.

80512845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 80512845 is about 8972.8950177744. The cubic root of 80512845 is about 431.8057200399.

The spelling of 80512845 in words is "eighty million, five hundred twelve thousand, eight hundred forty-five".