135608863 has 4 divisors (see below), whose sum is σ = 146040328. Its totient is φ = 125177400.

The previous prime is 135608831. The next prime is 135608887. The reversal of 135608863 is 368806531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368806531 = 3217 ⋅114643.

It is a cyclic number.

It is not a de Polignac number, because 135608863 - 2⁵ = 135608831 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 (135605863) 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 3 ways as a sum of consecutive naturals, for example, 5215713 + ... + 5215738.

It is an arithmetic number, because the mean of its divisors is an integer number (36510082).

Almost surely, 2^135608863 is an apocalyptic number.

135608863 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

135608863 is a deficient number, since it is larger than the sum of its proper divisors (10431465).

135608863 is a wasteful number, since it uses less digits than its factorization.

135608863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10431464.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 135608863 is about 11645.1218542358. The cubic root of 135608863 is about 513.7628430988.

The spelling of 135608863 in words is "one hundred thirty-five million, six hundred eight thousand, eight hundred sixty-three".