82181035 has 4 divisors (see below), whose sum is σ = 98617248. Its totient is φ = 65744824.

The previous prime is 82180949. The next prime is 82181053. The reversal of 82181035 is 53018128.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82181035 - 2¹⁹ = 81656747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82180994 and 82181012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8218099 + ... + 8218108.

It is an arithmetic number, because the mean of its divisors is an integer number (24654312).

Almost surely, 2^82181035 is an apocalyptic number.

82181035 is a deficient number, since it is larger than the sum of its proper divisors (16436213).

82181035 is a wasteful number, since it uses less digits than its factorization.

82181035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16436212.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 82181035 is about 9065.3756127366. The cubic root of 82181035 is about 434.7676303311.

The spelling of 82181035 in words is "eighty-two million, one hundred eighty-one thousand, thirty-five".