135601722 has 16 divisors (see below), whose sum is σ = 301337280. Its totient is φ = 45200556.

The previous prime is 135601699. The next prime is 135601733. The reversal of 135601722 is 227106531.

It is a happy number.

135601722 is a `hidden beast` number, since 1 + 35 + 601 + 7 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1255518 + ... + 1255625.

It is an arithmetic number, because the mean of its divisors is an integer number (18833580).

Almost surely, 2^135601722 is an apocalyptic number.

135601722 is an abundant number, since it is smaller than the sum of its proper divisors (165735558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135601722 is a wasteful number, since it uses less digits than its factorization.

135601722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511154 (or 2511148 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 135601722 is about 11644.8152411277. The cubic root of 135601722 is about 513.7538248956.

The spelling of 135601722 in words is "one hundred thirty-five million, six hundred one thousand, seven hundred twenty-two".