135271800863 has 4 divisors (see below), whose sum is σ = 135278213928. Its totient is φ = 135265387800.

The previous prime is 135271800857. The next prime is 135271800871. The reversal of 135271800863 is 368008172531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135271800863 - 2⁶ = 135271800799 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 (135271800463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3174788 + ... + 3217113.

It is an arithmetic number, because the mean of its divisors is an integer number (33819553482).

Almost surely, 2^135271800863 is an apocalyptic number.

135271800863 is a deficient number, since it is larger than the sum of its proper divisors (6413065).

135271800863 is an equidigital number, since it uses as much as digits as its factorization.

135271800863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6413064.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 135271800863 in words is "one hundred thirty-five billion, two hundred seventy-one million, eight hundred thousand, eight hundred sixty-three".