135603550 has 24 divisors (see below), whose sum is σ = 252675792. Its totient is φ = 54144000.

The previous prime is 135603497. The next prime is 135603563. The reversal of 135603550 is 55306531.

It is a happy number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29935 + ... + 34165.

It is an arithmetic number, because the mean of its divisors is an integer number (10528158).

Almost surely, 2^135603550 is an apocalyptic number.

135603550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135603550 is a deficient number, since it is larger than the sum of its proper divisors (117072242).

135603550 is a wasteful number, since it uses less digits than its factorization.

135603550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884 (or 4879 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 135603550 is about 11644.8937307302. The cubic root of 135603550 is about 513.7561334645.

The spelling of 135603550 in words is "one hundred thirty-five million, six hundred three thousand, five hundred fifty".