136726 has 8 divisors (see below), whose sum is σ = 207000. Its totient is φ = 67728.

The previous prime is 136711. The next prime is 136727. The reversal of 136726 is 627631.

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

It is a self number, because there is not a number n which added to its sum of digits gives 136726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136727) by changing a digit.

136726 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 3 ways as a sum of consecutive naturals, for example, 25 + ... + 523.

It is an arithmetic number, because the mean of its divisors is an integer number (25875).

2¹³⁶⁷²⁶ is an apocalyptic number.

136726 is a deficient number, since it is larger than the sum of its proper divisors (70274).

136726 is a wasteful number, since it uses less digits than its factorization.

136726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638.

The product of its digits is 1512, while the sum is 25.

The square root of 136726 is about 369.7647901031. The cubic root of 136726 is about 51.5169768393.

The spelling of 136726 in words is "one hundred thirty-six thousand, seven hundred twenty-six".