205151 has 2 divisors, whose sum is σ = 205152. Its totient is φ = 205150.

The previous prime is 205141. The next prime is 205157. The reversal of 205151 is 151502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205151 - 2¹⁴ = 188767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102575 + 102576.

It is an arithmetic number, because the mean of its divisors is an integer number (102576).

2²⁰⁵¹⁵¹ is an apocalyptic number.

205151 is a deficient number, since it is larger than the sum of its proper divisors (1).

205151 is an equidigital number, since it uses as much as digits as its factorization.

205151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 205151 is about 452.9359778158. The cubic root of 205151 is about 58.9781591092.

Adding to 205151 its reverse (151502), we get a palindrome (356653).

The spelling of 205151 in words is "two hundred five thousand, one hundred fifty-one".