82201445 has 4 divisors (see below), whose sum is σ = 98641740. Its totient is φ = 65761152.

The previous prime is 82201417. The next prime is 82201447. The reversal of 82201445 is 54410228.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 36409156 + 45792289 = 6034^2 + 6767^2 .

It is a cyclic number.

It is not a de Polignac number, because 82201445 - 2⁶ = 82201381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82201447) 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, 8220140 + ... + 8220149.

It is an arithmetic number, because the mean of its divisors is an integer number (24660435).

Almost surely, 2^82201445 is an apocalyptic number.

It is an amenable number.

82201445 is a deficient number, since it is larger than the sum of its proper divisors (16440295).

82201445 is a wasteful number, since it uses less digits than its factorization.

82201445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16440294.

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

The square root of 82201445 is about 9066.5012546186. The cubic root of 82201445 is about 434.8036194651.

The spelling of 82201445 in words is "eighty-two million, two hundred one thousand, four hundred forty-five".