205231151 has 2 divisors, whose sum is σ = 205231152. Its totient is φ = 205231150.

The previous prime is 205231127. The next prime is 205231223. The reversal of 205231151 is 151132502.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205231151 - 2¹⁴ = 205214767 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205231051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102615575 + 102615576.

It is an arithmetic number, because the mean of its divisors is an integer number (102615576).

Almost surely, 2^205231151 is an apocalyptic number.

205231151 is a deficient number, since it is larger than the sum of its proper divisors (1).

205231151 is an equidigital number, since it uses as much as digits as its factorization.

205231151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 205231151 is about 14325.8909321550. The cubic root of 205231151 is about 589.8583888804.

Adding to 205231151 its reverse (151132502), we get a palindrome (356363653).

The spelling of 205231151 in words is "two hundred five million, two hundred thirty-one thousand, one hundred fifty-one".