135105945 has 16 divisors (see below), whose sum is σ = 232798272. Its totient is φ = 66513600.

The previous prime is 135105937. The next prime is 135105961. The reversal of 135105945 is 549501531.

It is not a de Polignac number, because 135105945 - 2³ = 135105937 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346231 + ... + 346620.

It is an arithmetic number, because the mean of its divisors is an integer number (14549892).

Almost surely, 2^135105945 is an apocalyptic number.

135105945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135105945 is a deficient number, since it is larger than the sum of its proper divisors (97692327).

135105945 is a wasteful number, since it uses less digits than its factorization.

135105945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692872.

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 135105945 is about 11623.5082913895. The cubic root of 135105945 is about 513.1269440262.

The spelling of 135105945 in words is "one hundred thirty-five million, one hundred five thousand, nine hundred forty-five".