136849 has 2 divisors, whose sum is σ = 136850. Its totient is φ = 136848.

The previous prime is 136841. The next prime is 136859. The reversal of 136849 is 948631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71824 + 65025 = 268^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 136849 - 2³ = 136841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136849.

It is not a weakly prime, because it can be changed into another prime (136841) 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, 68424 + 68425.

It is an arithmetic number, because the mean of its divisors is an integer number (68425).

2¹³⁶⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

136849 is a deficient number, since it is larger than the sum of its proper divisors (1).

136849 is an equidigital number, since it uses as much as digits as its factorization.

136849 is an odious number, because the sum of its binary digits is odd.

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

The square root of 136849 is about 369.9310746612. The cubic root of 136849 is about 51.5324205953.

The spelling of 136849 in words is "one hundred thirty-six thousand, eight hundred forty-nine".