82012001 has 4 divisors (see below), whose sum is σ = 82045632. Its totient is φ = 81978372.

The previous prime is 82011989. The next prime is 82012009. The reversal of 82012001 is 10021028.

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 not a de Polignac number, because 82012001 - 2²⁶ = 14903137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82012009) 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, 12845 + ... + 18138.

It is an arithmetic number, because the mean of its divisors is an integer number (20511408).

Almost surely, 2^82012001 is an apocalyptic number.

It is an amenable number.

82012001 is a deficient number, since it is larger than the sum of its proper divisors (33631).

82012001 is a wasteful number, since it uses less digits than its factorization.

82012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33630.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 82012001 is about 9056.0477582663. The cubic root of 82012001 is about 434.4693419017.

Adding to 82012001 its reverse (10021028), we get a palindrome (92033029).

It can be divided in two parts, 820 and 12001, that added together give a palindrome (12821).

The spelling of 82012001 in words is "eighty-two million, twelve thousand, one".