205155154 has 8 divisors (see below), whose sum is σ = 312948720. Its totient is φ = 100838916.

The previous prime is 205155151. The next prime is 205155163. The reversal of 205155154 is 451551502.

205155154 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 an unprimeable number, because it can be changed into a prime (205155151) 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, 869184 + ... + 869419.

It is an arithmetic number, because the mean of its divisors is an integer number (39118590).

Almost surely, 2^205155154 is an apocalyptic number.

205155154 is a deficient number, since it is larger than the sum of its proper divisors (107793566).

205155154 is a wasteful number, since it uses less digits than its factorization.

205155154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738664.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 205155154 is about 14323.2382511777. The cubic root of 205155154 is about 589.7855717957.

The spelling of 205155154 in words is "two hundred five million, one hundred fifty-five thousand, one hundred fifty-four".