135661675 has 6 divisors (see below), whose sum is σ = 168220508. Its totient is φ = 108529320.

The previous prime is 135661663. The next prime is 135661679. The reversal of 135661675 is 576166531.

It is a de Polignac number, because none of the positive numbers 2^k-135661675 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135661679) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2713209 + ... + 2713258.

Almost surely, 2^135661675 is an apocalyptic number.

135661675 is a deficient number, since it is larger than the sum of its proper divisors (32558833).

135661675 is an equidigital number, since it uses as much as digits as its factorization.

135661675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5426477 (or 5426472 counting only the distinct ones).

The product of its digits is 113400, while the sum is 40.

The square root of 135661675 is about 11647.3891924328. The cubic root of 135661675 is about 513.8295283218.

The spelling of 135661675 in words is "one hundred thirty-five million, six hundred sixty-one thousand, six hundred seventy-five".