135913615 has 8 divisors (see below), whose sum is σ = 163162080. Its totient is φ = 108687072.

The previous prime is 135913577. The next prime is 135913621. The reversal of 135913615 is 516319531.

It is a happy number.

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 135913615 - 2²⁷ = 1695887 is a prime.

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, 15406 + ... + 22564.

It is an arithmetic number, because the mean of its divisors is an integer number (20395260).

Almost surely, 2^135913615 is an apocalyptic number.

135913615 is a deficient number, since it is larger than the sum of its proper divisors (27248465).

135913615 is an equidigital number, since it uses as much as digits as its factorization.

135913615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10961.

The product of its digits is 12150, while the sum is 34.

The square root of 135913615 is about 11658.1994750476. The cubic root of 135913615 is about 514.1474126386.

The spelling of 135913615 in words is "one hundred thirty-five million, nine hundred thirteen thousand, six hundred fifteen".