135406 has 8 divisors (see below), whose sum is σ = 205920. Its totient is φ = 66768.
The previous prime is 135403. The next prime is 135409. The reversal of 135406 is 604531.
It is an interprime number because it is at equal distance from previous prime (135403) and next prime (135409).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (135403) 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, 271 + ... + 586.
It is an arithmetic number, because the mean of its divisors is an integer number (25740).
2135406 is an apocalyptic number.
135406 is a deficient number, since it is larger than the sum of its proper divisors (70514).
135406 is an equidigital number, since it uses as much as digits as its factorization.
It is an anagram of its base 8 representation: 135406 = (410356)8.
135406 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 938.
The product of its (nonzero) digits is 360, while the sum is 19.
The square root of 135406 is about 367.9755426655. The cubic root of 135406 is about 51.3506528766.
Adding to 135406 its reverse (604531), we get a palindrome (739937).
The spelling of 135406 in words is "one hundred thirty-five thousand, four hundred six".
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