134563251263 has 4 divisors (see below), whose sum is σ = 153786572880. Its totient is φ = 115339929648.

The previous prime is 134563251241. The next prime is 134563251293. The reversal of 134563251263 is 362152365431.

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 134563251263 - 2¹² = 134563247167 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 134563251263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134563251293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9611660798 + ... + 9611660811.

It is an arithmetic number, because the mean of its divisors is an integer number (38446643220).

Almost surely, 2^134563251263 is an apocalyptic number.

134563251263 is a deficient number, since it is larger than the sum of its proper divisors (19223321617).

134563251263 is an equidigital number, since it uses as much as digits as its factorization.

134563251263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19223321616.

The product of its digits is 388800, while the sum is 41.

The spelling of 134563251263 in words is "one hundred thirty-four billion, five hundred sixty-three million, two hundred fifty-one thousand, two hundred sixty-three".