136673 has 4 divisors (see below), whose sum is σ = 138180. Its totient is φ = 135168.

The previous prime is 136657. The next prime is 136691. The reversal of 136673 is 376631.

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 23104 + 113569 = 152^2 + 337^2 .

It is a cyclic number.

It is not a de Polignac number, because 136673 - 2⁴ = 136657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136603) 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, 608 + ... + 801.

It is an arithmetic number, because the mean of its divisors is an integer number (34545).

2¹³⁶⁶⁷³ is an apocalyptic number.

It is an amenable number.

136673 is a deficient number, since it is larger than the sum of its proper divisors (1507).

136673 is an equidigital number, since it uses as much as digits as its factorization.

136673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506.

The product of its digits is 2268, while the sum is 26.

The square root of 136673 is about 369.6931159759. The cubic root of 136673 is about 51.5103193573.

The spelling of 136673 in words is "one hundred thirty-six thousand, six hundred seventy-three".