205154359 has 2 divisors, whose sum is σ = 205154360. Its totient is φ = 205154358.

The previous prime is 205154357. The next prime is 205154371. The reversal of 205154359 is 953451502.

205154359 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205154359 - 2¹ = 205154357 is a prime.

It is a super-2 number, since 2×205154359² = 84176622033401762, which contains 22 as substring.

Together with 205154357, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205154353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102577179 + 102577180.

It is an arithmetic number, because the mean of its divisors is an integer number (102577180).

Almost surely, 2^205154359 is an apocalyptic number.

205154359 is a deficient number, since it is larger than the sum of its proper divisors (1).

205154359 is an equidigital number, since it uses as much as digits as its factorization.

205154359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 205154359 is about 14323.2104990466. The cubic root of 205154359 is about 589.7848099655.

The spelling of 205154359 in words is "two hundred five million, one hundred fifty-four thousand, three hundred fifty-nine".