82165001 has 4 divisors (see below), whose sum is σ = 82223232. Its totient is φ = 82106772.

The previous prime is 82164991. The next prime is 82165003. The reversal of 82165001 is 10056128.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82165001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82165003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26945 + ... + 29838.

It is an arithmetic number, because the mean of its divisors is an integer number (20555808).

Almost surely, 2^82165001 is an apocalyptic number.

It is an amenable number.

82165001 is a deficient number, since it is larger than the sum of its proper divisors (58231).

82165001 is a wasteful number, since it uses less digits than its factorization.

82165001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58230.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 82165001 is about 9064.4912157274. The cubic root of 82165001 is about 434.7393532572.

The spelling of 82165001 in words is "eighty-two million, one hundred sixty-five thousand, one".