205012342 has 8 divisors (see below), whose sum is σ = 307608336. Its totient is φ = 102476232.

The previous prime is 205012309. The next prime is 205012343. The reversal of 205012342 is 243210502.

205012342 is digitally balanced in base 3, 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 a super-3 number, since 3×205012342³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205012343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5113 + ... + 20884.

It is an arithmetic number, because the mean of its divisors is an integer number (38451042).

Almost surely, 2^205012342 is an apocalyptic number.

205012342 is a deficient number, since it is larger than the sum of its proper divisors (102595994).

205012342 is a wasteful number, since it uses less digits than its factorization.

205012342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29942.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 205012342 is about 14318.2520581250. The cubic root of 205012342 is about 589.6486867645.

Adding to 205012342 its reverse (243210502), we get a palindrome (448222844).

The spelling of 205012342 in words is "two hundred five million, twelve thousand, three hundred forty-two".