135550388 has 12 divisors (see below), whose sum is σ = 243624612. Its totient is φ = 65943360.

The previous prime is 135550361. The next prime is 135550391. The reversal of 135550388 is 883055531.

It can be written as a sum of positive squares in 2 ways, for example, as 53611684 + 81938704 = 7322^2 + 9052^2 .

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 3 ways as a sum of consecutive naturals, for example, 457793 + ... + 458088.

It is an arithmetic number, because the mean of its divisors is an integer number (20302051).

Almost surely, 2^135550388 is an apocalyptic number.

It is an amenable number.

135550388 is a deficient number, since it is larger than the sum of its proper divisors (108074224).

135550388 is a wasteful number, since it uses less digits than its factorization.

135550388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915922 (or 915920 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 135550388 is about 11642.6108755725. The cubic root of 135550388 is about 513.6889870574.

The spelling of 135550388 in words is "one hundred thirty-five million, five hundred fifty thousand, three hundred eighty-eight".