135221695 has 8 divisors (see below), whose sum is σ = 185446944. Its totient is φ = 92723424.

The previous prime is 135221677. The next prime is 135221707. The reversal of 135221695 is 596122531.

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

It is a cyclic number.

It is not a de Polignac number, because 135221695 - 2¹⁵ = 135188927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135221695.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1931704 + ... + 1931773.

It is an arithmetic number, because the mean of its divisors is an integer number (23180868).

Almost surely, 2^135221695 is an apocalyptic number.

135221695 is a deficient number, since it is larger than the sum of its proper divisors (50225249).

135221695 is an equidigital number, since it uses as much as digits as its factorization.

135221695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863489.

The product of its digits is 16200, while the sum is 34.

The square root of 135221695 is about 11628.4863589377. The cubic root of 135221695 is about 513.2734401459.

The spelling of 135221695 in words is "one hundred thirty-five million, two hundred twenty-one thousand, six hundred ninety-five".