136049 has 4 divisors (see below), whose sum is σ = 139764. Its totient is φ = 132336.

The previous prime is 136043. The next prime is 136057. The reversal of 136049 is 940631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 940631 = 23 ⋅40897.

It can be written as a sum of positive squares in 2 ways, for example, as 115600 + 20449 = 340^2 + 143^2 .

It is a cyclic number.

It is not a de Polignac number, because 136049 - 2⁴ = 136033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136043) 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, 1802 + ... + 1875.

It is an arithmetic number, because the mean of its divisors is an integer number (34941).

2¹³⁶⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

136049 is a deficient number, since it is larger than the sum of its proper divisors (3715).

136049 is an equidigital number, since it uses as much as digits as its factorization.

136049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 136049 is about 368.8482072615. The cubic root of 136049 is about 51.4318071891.

The spelling of 136049 in words is "one hundred thirty-six thousand, forty-nine".