135601027 has 4 divisors (see below), whose sum is σ = 143577576. Its totient is φ = 127624480.

The previous prime is 135601019. The next prime is 135601073. The reversal of 135601027 is 720106531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135601027 - 2³ = 135601019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135600992 and 135601010.

It is not an unprimeable number, because it can be changed into a prime (135605027) 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 3 ways as a sum of consecutive naturals, for example, 3988249 + ... + 3988282.

It is an arithmetic number, because the mean of its divisors is an integer number (35894394).

Almost surely, 2^135601027 is an apocalyptic number.

135601027 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

135601027 is a deficient number, since it is larger than the sum of its proper divisors (7976549).

135601027 is an equidigital number, since it uses as much as digits as its factorization.

135601027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7976548.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 135601027 is about 11644.7853994825. The cubic root of 135601027 is about 513.7529471793.

Adding to 135601027 its reverse (720106531), we get a palindrome (855707558).

The spelling of 135601027 in words is "one hundred thirty-five million, six hundred one thousand, twenty-seven".