82267145 has 4 divisors (see below), whose sum is σ = 98720580. Its totient is φ = 65813712.

The previous prime is 82267139. The next prime is 82267177. The reversal of 82267145 is 54176228.

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 64128064 + 18139081 = 8008^2 + 4259^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82267145 is a prime.

It is a Curzon number.

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, 8226710 + ... + 8226719.

It is an arithmetic number, because the mean of its divisors is an integer number (24680145).

Almost surely, 2^82267145 is an apocalyptic number.

It is an amenable number.

82267145 is a deficient number, since it is larger than the sum of its proper divisors (16453435).

82267145 is a wasteful number, since it uses less digits than its factorization.

82267145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16453434.

The product of its digits is 26880, while the sum is 35.

The square root of 82267145 is about 9070.1237588029. The cubic root of 82267145 is about 434.9194284208.

The spelling of 82267145 in words is "eighty-two million, two hundred sixty-seven thousand, one hundred forty-five".