136573 has 2 divisors, whose sum is σ = 136574. Its totient is φ = 136572.

The previous prime is 136559. The next prime is 136601. The reversal of 136573 is 375631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91204 + 45369 = 302^2 + 213^2 .

It is an emirp because it is prime and its reverse (375631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136573 - 2⁵ = 136541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68286 + 68287.

It is an arithmetic number, because the mean of its divisors is an integer number (68287).

2¹³⁶⁵⁷³ is an apocalyptic number.

It is an amenable number.

136573 is a deficient number, since it is larger than the sum of its proper divisors (1).

136573 is an equidigital number, since it uses as much as digits as its factorization.

136573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 25.

The square root of 136573 is about 369.5578439162. The cubic root of 136573 is about 51.4977533817.

The spelling of 136573 in words is "one hundred thirty-six thousand, five hundred seventy-three".