82180497 has 12 divisors (see below), whose sum is σ = 127463856. Its totient is φ = 46960200.

The previous prime is 82180489. The next prime is 82180513. The reversal of 82180497 is 79408128.

It is not a de Polignac number, because 82180497 - 2³ = 82180489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82180447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 279379 + ... + 279672.

It is an arithmetic number, because the mean of its divisors is an integer number (10621988).

Almost surely, 2^82180497 is an apocalyptic number.

It is an amenable number.

82180497 is a deficient number, since it is larger than the sum of its proper divisors (45283359).

82180497 is a wasteful number, since it uses less digits than its factorization.

82180497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559068 (or 559061 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 82180497 is about 9065.3459393451. The cubic root of 82180497 is about 434.7666815903.

It can be divided in two parts, 821 and 80497, that added together give a palindrome (81318).

The spelling of 82180497 in words is "eighty-two million, one hundred eighty thousand, four hundred ninety-seven".