82445201 has 4 divisors (see below), whose sum is σ = 82790400. Its totient is φ = 82100004.

The previous prime is 82445177. The next prime is 82445227. The reversal of 82445201 is 10254428.

It is a happy number.

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 82445201 - 2²² = 78250897 is a prime.

It is a super-2 number, since 2×82445201² = 13594422335860802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82445261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172241 + ... + 172718.

It is an arithmetic number, because the mean of its divisors is an integer number (20697600).

Almost surely, 2^82445201 is an apocalyptic number.

It is an amenable number.

82445201 is a deficient number, since it is larger than the sum of its proper divisors (345199).

82445201 is a wasteful number, since it uses less digits than its factorization.

82445201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345198.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 82445201 is about 9079.9339755309. The cubic root of 82445201 is about 435.2329768869.

Adding to 82445201 its reverse (10254428), we get a palindrome (92699629).

The spelling of 82445201 in words is "eighty-two million, four hundred forty-five thousand, two hundred one".