136406 has 8 divisors (see below), whose sum is σ = 206184. Its totient is φ = 67680.

The previous prime is 136403. The next prime is 136417. The reversal of 136406 is 604631.

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

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 136406.

It is not an unprimeable number, because it can be changed into a prime (136403) 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, 341 + ... + 623.

It is an arithmetic number, because the mean of its divisors is an integer number (25773).

2¹³⁶⁴⁰⁶ is an apocalyptic number.

136406 is a deficient number, since it is larger than the sum of its proper divisors (69778).

136406 is a wasteful number, since it uses less digits than its factorization.

136406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 136406 is about 369.3318291185. The cubic root of 136406 is about 51.4767545201.

The spelling of 136406 in words is "one hundred thirty-six thousand, four hundred six".