205161351 has 8 divisors (see below), whose sum is σ = 273625200. Its totient is φ = 136735872.

The previous prime is 205161347. The next prime is 205161377. The reversal of 205161351 is 153161502.

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

It is not a de Polignac number, because 205161351 - 2² = 205161347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205161391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6975 + ... + 21423.

It is an arithmetic number, because the mean of its divisors is an integer number (34203150).

Almost surely, 2^205161351 is an apocalyptic number.

205161351 is a deficient number, since it is larger than the sum of its proper divisors (68463849).

205161351 is a wasteful number, since it uses less digits than its factorization.

205161351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19185.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 205161351 is about 14323.4545763234. The cubic root of 205161351 is about 589.7915101701.

The spelling of 205161351 in words is "two hundred five million, one hundred sixty-one thousand, three hundred fifty-one".