136722 has 8 divisors (see below), whose sum is σ = 273456. Its totient is φ = 45572.

The previous prime is 136711. The next prime is 136727. The reversal of 136722 is 227631.

It is a happy number.

136722 is nontrivially palindromic in base 16.

It is a sphenic number, since it is the product of 3 distinct primes.

136722 is an admirable number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (136727) 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, 11388 + ... + 11399.

It is an arithmetic number, because the mean of its divisors is an integer number (34182).

2¹³⁶⁷²² is an apocalyptic number.

136722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136722 is a wasteful number, since it uses less digits than its factorization.

136722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22792.

The product of its digits is 504, while the sum is 21.

The square root of 136722 is about 369.7593812197. The cubic root of 136722 is about 51.5164744479.

Subtracting 136722 from its reverse (227631), we obtain a palindrome (90909).

It can be divided in two parts, 136 and 722, that added together give a palindrome (858).

The spelling of 136722 in words is "one hundred thirty-six thousand, seven hundred twenty-two".