80540043 has 16 divisors (see below), whose sum is σ = 112285440. Its totient is φ = 51253664.

The previous prime is 80540041. The next prime is 80540059. The reversal of 80540043 is 34004508.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 80540043 - 2¹ = 80540041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80539995 and 80540022.

It is not an unprimeable number, because it can be changed into a prime (80540041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46273 + ... + 47981.

It is an arithmetic number, because the mean of its divisors is an integer number (7017840).

Almost surely, 2^80540043 is an apocalyptic number.

80540043 is a deficient number, since it is larger than the sum of its proper divisors (31745397).

80540043 is a wasteful number, since it uses less digits than its factorization.

80540043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 80540043 is about 8974.4104541747. The cubic root of 80540043 is about 431.8543372504.

The spelling of 80540043 in words is "eighty million, five hundred forty thousand, forty-three".