82180043 has 8 divisors (see below), whose sum is σ = 90732096. Its totient is φ = 73808200.

The previous prime is 82180037. The next prime is 82180061. The reversal of 82180043 is 34008128.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82180043 - 2⁴ = 82180027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82179994 and 82180021.

It is not an unprimeable number, because it can be changed into a prime (82180003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44093 + ... + 45918.

It is an arithmetic number, because the mean of its divisors is an integer number (11341512).

Almost surely, 2^82180043 is an apocalyptic number.

82180043 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

82180043 is a deficient number, since it is larger than the sum of its proper divisors (8552053).

82180043 is a wasteful number, since it uses less digits than its factorization.

82180043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90105.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 82180043 is about 9065.3208988982. The cubic root of 82180043 is about 434.7658809769.

The spelling of 82180043 in words is "eighty-two million, one hundred eighty thousand, forty-three".