205153321 has 8 divisors (see below), whose sum is σ = 208442304. Its totient is φ = 201889200.

The previous prime is 205153231. The next prime is 205153349. The reversal of 205153321 is 123351502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205153321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205153292 and 205153301.

It is not an unprimeable number, because it can be changed into a prime (205153021) 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, 10786 + ... + 22948.

It is an arithmetic number, because the mean of its divisors is an integer number (26055288).

Almost surely, 2^205153321 is an apocalyptic number.

It is an amenable number.

205153321 is a deficient number, since it is larger than the sum of its proper divisors (3288983).

205153321 is a wasteful number, since it uses less digits than its factorization.

205153321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12431.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 205153321 is about 14323.1742641078. The cubic root of 205153321 is about 589.7838152712.

The spelling of 205153321 in words is "two hundred five million, one hundred fifty-three thousand, three hundred twenty-one".