205132251 has 8 divisors (see below), whose sum is σ = 289598544. Its totient is φ = 128710400.

The previous prime is 205132247. The next prime is 205132261. The reversal of 205132251 is 152231502.

205132251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 205132251 - 2² = 205132247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205132201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2011050 + ... + 2011151.

It is an arithmetic number, because the mean of its divisors is an integer number (36199818).

Almost surely, 2^205132251 is an apocalyptic number.

205132251 is a deficient number, since it is larger than the sum of its proper divisors (84466293).

205132251 is a wasteful number, since it uses less digits than its factorization.

205132251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022221.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 205132251 is about 14322.4387239045. The cubic root of 205132251 is about 589.7636235915.

Adding to 205132251 its reverse (152231502), we get a palindrome (357363753).

The spelling of 205132251 in words is "two hundred five million, one hundred thirty-two thousand, two hundred fifty-one".