204526454135 has 4 divisors (see below), whose sum is σ = 245431744968. Its totient is φ = 163621163304.

The previous prime is 204526454129. The next prime is 204526454159. The reversal of 204526454135 is 531454625402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531454625402 = 2 ⋅265727312701.

It is a cyclic number.

It is not a de Polignac number, because 204526454135 - 2¹⁴ = 204526437751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204526454092 and 204526454101.

It is a congruent number.

It is an unprimeable number.

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, 20452645409 + ... + 20452645418.

It is an arithmetic number, because the mean of its divisors is an integer number (61357936242).

Almost surely, 2^204526454135 is an apocalyptic number.

204526454135 is a deficient number, since it is larger than the sum of its proper divisors (40905290833).

204526454135 is an equidigital number, since it uses as much as digits as its factorization.

204526454135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40905290832.

The product of its (nonzero) digits is 576000, while the sum is 41.

The spelling of 204526454135 in words is "two hundred four billion, five hundred twenty-six million, four hundred fifty-four thousand, one hundred thirty-five".