205414135 has 16 divisors (see below), whose sum is σ = 249056640. Its totient is φ = 162635040.

The previous prime is 205414129. The next prime is 205414151. The reversal of 205414135 is 531414502.

It is a happy number.

It is not a de Polignac number, because 205414135 - 2¹³ = 205405943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252880 + ... + 253690.

It is an arithmetic number, because the mean of its divisors is an integer number (15566040).

Almost surely, 2^205414135 is an apocalyptic number.

205414135 is a deficient number, since it is larger than the sum of its proper divisors (43642505).

205414135 is a wasteful number, since it uses less digits than its factorization.

205414135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 205414135 is about 14332.2759881325. The cubic root of 205414135 is about 590.0336426282.

Adding to 205414135 its reverse (531414502), we get a palindrome (736828637).

The spelling of 205414135 in words is "two hundred five million, four hundred fourteen thousand, one hundred thirty-five".