84149 has 4 divisors (see below), whose sum is σ = 90636. Its totient is φ = 77664.

The previous prime is 84143. The next prime is 84163. The reversal of 84149 is 94148.

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 13924 + 70225 = 118^2 + 265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84149 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 84149.

It is not an unprimeable number, because it can be changed into a prime (84143) 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, 3224 + ... + 3249.

It is an arithmetic number, because the mean of its divisors is an integer number (22659).

2⁸⁴¹⁴⁹ is an apocalyptic number.

It is an amenable number.

84149 is a deficient number, since it is larger than the sum of its proper divisors (6487).

84149 is a wasteful number, since it uses less digits than its factorization.

84149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6486.

The product of its digits is 1152, while the sum is 26.

The square root of 84149 is about 290.0844704565. The cubic root of 84149 is about 43.8210708790.

Subtracting 84149 from its reverse (94148), we obtain a palindrome (9999).

It can be divided in two parts, 841 and 49, that multiplied together give a square (41209 = 203²).

The spelling of 84149 in words is "eighty-four thousand, one hundred forty-nine".