135675221 has 8 divisors (see below), whose sum is σ = 148126944. Its totient is φ = 123243120.

The previous prime is 135675217. The next prime is 135675223. The reversal of 135675221 is 122576531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135675221 - 2² = 135675217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135675223) 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 7 ways as a sum of consecutive naturals, for example, 12155 + ... + 20471.

It is an arithmetic number, because the mean of its divisors is an integer number (18515868).

Almost surely, 2^135675221 is an apocalyptic number.

135675221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

135675221 is a deficient number, since it is larger than the sum of its proper divisors (12451723).

135675221 is a wasteful number, since it uses less digits than its factorization.

135675221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9811.

The product of its digits is 12600, while the sum is 32.

The square root of 135675221 is about 11647.9706816252. The cubic root of 135675221 is about 513.8466299415.

The spelling of 135675221 in words is "one hundred thirty-five million, six hundred seventy-five thousand, two hundred twenty-one".