254044135133 has 4 divisors (see below), whose sum is σ = 258208793148. Its totient is φ = 249879477120.

The previous prime is 254044135127. The next prime is 254044135171. The reversal of 254044135133 is 331531440452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9576188164 + 244467946969 = 97858^2 + 494437^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254044135133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254044135093 and 254044135102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254044135633) 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, 2082328916 + ... + 2082329037.

It is an arithmetic number, because the mean of its divisors is an integer number (64552198287).

Almost surely, 2^254044135133 is an apocalyptic number.

It is an amenable number.

254044135133 is a deficient number, since it is larger than the sum of its proper divisors (4164658015).

254044135133 is an equidigital number, since it uses as much as digits as its factorization.

254044135133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4164658014.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 254044135133 its reverse (331531440452), we get a palindrome (585575575585).

The spelling of 254044135133 in words is "two hundred fifty-four billion, forty-four million, one hundred thirty-five thousand, one hundred thirty-three".