254135441533123 has 4 divisors (see below), whose sum is σ = 254390341676080. Its totient is φ = 253880541390168.

The previous prime is 254135441533073. The next prime is 254135441533147. The reversal of 254135441533123 is 321335144531452.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254135441533123 is a prime.

It is a super-2 number, since 2×254135441533123² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254135441534123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127450069983 + ... + 127450071976.

It is an arithmetic number, because the mean of its divisors is an integer number (63597585419020).

Almost surely, 2^{254135441533123} is an apocalyptic number.

254135441533123 is a deficient number, since it is larger than the sum of its proper divisors (254900142957).

254135441533123 is an equidigital number, since it uses as much as digits as its factorization.

254135441533123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254900142956.

The product of its digits is 2592000, while the sum is 46.

The spelling of 254135441533123 in words is "two hundred fifty-four trillion, one hundred thirty-five billion, four hundred forty-one million, five hundred thirty-three thousand, one hundred twenty-three".