135601872 has 40 divisors (see below), whose sum is σ = 400349376. Its totient is φ = 38743296.

The previous prime is 135601861. The next prime is 135601891. The reversal of 135601872 is 278106531.

It is a congruent number.

It is an unprimeable number.

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, 201453 + ... + 202124.

Almost surely, 2^135601872 is an apocalyptic number.

135601872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135601872 is an abundant number, since it is smaller than the sum of its proper divisors (264747504).

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

135601872 is a wasteful number, since it uses less digits than its factorization.

135601872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403595 (or 403589 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 135601872 is about 11644.8216817605. The cubic root of 135601872 is about 513.7540143304.

The spelling of 135601872 in words is "one hundred thirty-five million, six hundred one thousand, eight hundred seventy-two".