82214149 has 4 divisors (see below), whose sum is σ = 82737964. Its totient is φ = 81690336.

The previous prime is 82214141. The next prime is 82214161. The reversal of 82214149 is 94141228.

82214149 is nontrivially palindromic in base 6.

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 27720225 + 54493924 = 5265^2 + 7382^2 .

It is a cyclic number.

It is not a de Polignac number, because 82214149 - 2³ = 82214141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82214149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82214141) 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, 261672 + ... + 261985.

It is an arithmetic number, because the mean of its divisors is an integer number (20684491).

Almost surely, 2^82214149 is an apocalyptic number.

It is an amenable number.

82214149 is a deficient number, since it is larger than the sum of its proper divisors (523815).

82214149 is a wasteful number, since it uses less digits than its factorization.

82214149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523814.

The product of its digits is 4608, while the sum is 31.

The square root of 82214149 is about 9067.2018285687. The cubic root of 82214149 is about 434.8260175330.

The spelling of 82214149 in words is "eighty-two million, two hundred fourteen thousand, one hundred forty-nine".