205342154533 has 8 divisors (see below), whose sum is σ = 206359919352. Its totient is φ = 204326717376.

The previous prime is 205342154519. The next prime is 205342154543. The reversal of 205342154533 is 335451243502.

It can be written as a sum of positive squares in 4 ways, for example, as 47968884324 + 157373270209 = 219018^2 + 396703^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205342154533 - 2⁹ = 205342154021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205342154492 and 205342154501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205342154543) 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 7 ways as a sum of consecutive naturals, for example, 404910 + ... + 758047.

It is an arithmetic number, because the mean of its divisors is an integer number (25794989919).

Almost surely, 2^205342154533 is an apocalyptic number.

It is an amenable number.

205342154533 is a deficient number, since it is larger than the sum of its proper divisors (1017764819).

205342154533 is a wasteful number, since it uses less digits than its factorization.

205342154533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163831.

The product of its (nonzero) digits is 216000, while the sum is 37.

The spelling of 205342154533 in words is "two hundred five billion, three hundred forty-two million, one hundred fifty-four thousand, five hundred thirty-three".