80547845 has 16 divisors (see below), whose sum is σ = 111341568. Its totient is φ = 54794880.

The previous prime is 80547811. The next prime is 80547851. The reversal of 80547845 is 54874508.

It is not a de Polignac number, because 80547845 - 2¹⁴ = 80531461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4616 + ... + 13505.

It is an arithmetic number, because the mean of its divisors is an integer number (6958848).

Almost surely, 2^80547845 is an apocalyptic number.

It is an amenable number.

80547845 is a deficient number, since it is larger than the sum of its proper divisors (30793723).

80547845 is a wasteful number, since it uses less digits than its factorization.

80547845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18260.

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 80547845 is about 8974.8451240119. The cubic root of 80547845 is about 431.8682815304.

The spelling of 80547845 in words is "eighty million, five hundred forty-seven thousand, eight hundred forty-five".