135963817 has 8 divisors (see below), whose sum is σ = 148855392. Its totient is φ = 123160800.

The previous prime is 135963767. The next prime is 135963827. The reversal of 135963817 is 718369531.

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 135963817 - 2⁷ = 135963689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135963827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18903 + ... + 25084.

It is an arithmetic number, because the mean of its divisors is an integer number (18606924).

Almost surely, 2^135963817 is an apocalyptic number.

It is an amenable number.

135963817 is a deficient number, since it is larger than the sum of its proper divisors (12891575).

135963817 is a wasteful number, since it uses less digits than its factorization.

135963817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44279.

The product of its digits is 136080, while the sum is 43.

The square root of 135963817 is about 11660.3523531667. The cubic root of 135963817 is about 514.2107078699.

The spelling of 135963817 in words is "one hundred thirty-five million, nine hundred sixty-three thousand, eight hundred seventeen".