205182742 has 8 divisors (see below), whose sum is σ = 310947336. Its totient is φ = 101533632.

The previous prime is 205182697. The next prime is 205182749. The reversal of 205182742 is 247281502.

It is a happy number.

205182742 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-2 number, since 2×205182742² = 84199915229277128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205182749) 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, 528628 + ... + 529015.

It is an arithmetic number, because the mean of its divisors is an integer number (38868417).

Almost surely, 2^205182742 is an apocalyptic number.

205182742 is a deficient number, since it is larger than the sum of its proper divisors (105764594).

205182742 is a wasteful number, since it uses less digits than its factorization.

205182742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057742.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 205182742 is about 14324.2012691808. The cubic root of 205182742 is about 589.8120075196.

The spelling of 205182742 in words is "two hundred five million, one hundred eighty-two thousand, seven hundred forty-two".