135549375 has 80 divisors (see below), whose sum is σ = 249820032. Its totient is φ = 64944000.

The previous prime is 135549371. The next prime is 135549383. The reversal of 135549375 is 573945531.

It is not a de Polignac number, because 135549375 - 2² = 135549371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135549371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1633084 + ... + 1633166.

Almost surely, 2^135549375 is an apocalyptic number.

135549375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135549375 is a deficient number, since it is larger than the sum of its proper divisors (114270657).

135549375 is an equidigital number, since it uses as much as digits as its factorization.

135549375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 171 counting only the distinct ones).

The product of its digits is 283500, while the sum is 42.

The square root of 135549375 is about 11642.5673715036. The cubic root of 135549375 is about 513.6877074146.

The spelling of 135549375 in words is "one hundred thirty-five million, five hundred forty-nine thousand, three hundred seventy-five".