135601361 has 8 divisors (see below), whose sum is σ = 160317120. Its totient is φ = 112221648.

The previous prime is 135601351. The next prime is 135601373. The reversal of 135601361 is 163106531.

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

It is not a de Polignac number, because 135601361 - 2²² = 131407057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135601361.

It is not an unprimeable number, because it can be changed into a prime (135601321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333791 + ... + 334196.

It is an arithmetic number, because the mean of its divisors is an integer number (20039640).

Almost surely, 2^135601361 is an apocalyptic number.

It is an amenable number.

135601361 is a deficient number, since it is larger than the sum of its proper divisors (24715759).

135601361 is an equidigital number, since it uses as much as digits as its factorization.

135601361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668023.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 135601361 is about 11644.7997406568. The cubic root of 135601361 is about 513.7533689887.

Adding to 135601361 its reverse (163106531), we get a palindrome (298707892).

The spelling of 135601361 in words is "one hundred thirty-five million, six hundred one thousand, three hundred sixty-one".