135821732 has 24 divisors (see below), whose sum is σ = 247006200. Its totient is φ = 65270016.

The previous prime is 135821723. The next prime is 135821753. The reversal of 135821732 is 237128531.

It can be written as a sum of positive squares in 4 ways, for example, as 13586596 + 122235136 = 3686^2 + 11056^2 .

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, 24008 + ... + 29120.

It is an arithmetic number, because the mean of its divisors is an integer number (10291925).

Almost surely, 2^135821732 is an apocalyptic number.

It is an amenable number.

135821732 is a deficient number, since it is larger than the sum of its proper divisors (111184468).

135821732 is a wasteful number, since it uses less digits than its factorization.

135821732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5375 (or 5373 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 135821732 is about 11654.2581059457. The cubic root of 135821732 is about 514.0315251650.

The spelling of 135821732 in words is "one hundred thirty-five million, eight hundred twenty-one thousand, seven hundred thirty-two".