136984 has 8 divisors (see below), whose sum is σ = 256860. Its totient is φ = 68488.

The previous prime is 136979. The next prime is 136987. The reversal of 136984 is 489631.

It is a tau number, because it is divible by the number of its divisors (8).

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 136984.

It is not an unprimeable number, because it can be changed into a prime (136987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8554 + ... + 8569.

2¹³⁶⁹⁸⁴ is an apocalyptic number.

It is an amenable number.

136984 is a deficient number, since it is larger than the sum of its proper divisors (119876).

136984 is a wasteful number, since it uses less digits than its factorization.

136984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17129 (or 17125 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 136984 is about 370.1134961063. The cubic root of 136984 is about 51.5493604107.

The spelling of 136984 in words is "one hundred thirty-six thousand, nine hundred eighty-four".