80547012 has 144 divisors (see below), whose sum is σ = 261730560. Its totient is φ = 20300544.

The previous prime is 80547011. The next prime is 80547029. The reversal of 80547012 is 21074508.

It is a super-2 number, since 2×80547012² = 12975642284256288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80547011) 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 in 47 ways as a sum of consecutive naturals, for example, 74814 + ... + 75882.

Almost surely, 2^80547012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80547012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130865280).

80547012 is an abundant number, since it is smaller than the sum of its proper divisors (181183548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80547012 is a wasteful number, since it uses less digits than its factorization.

80547012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122 (or 1117 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 80547012 is about 8974.7987164058. The cubic root of 80547012 is about 431.8667927775.

The spelling of 80547012 in words is "eighty million, five hundred forty-seven thousand, twelve".