205412144 has 20 divisors (see below), whose sum is σ = 454841424. Its totient is φ = 88033728.

The previous prime is 205412143. The next prime is 205412177. The reversal of 205412144 is 441214502.

205412144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (205412143) 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, 916907 + ... + 917130.

Almost surely, 2^205412144 is an apocalyptic number.

It is an amenable number.

205412144 is an abundant number, since it is smaller than the sum of its proper divisors (249429280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205412144 is a wasteful number, since it uses less digits than its factorization.

205412144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834052 (or 1834046 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 205412144 is about 14332.2065293520. The cubic root of 205412144 is about 590.0317362992.

Adding to 205412144 its reverse (441214502), we get a palindrome (646626646).

The spelling of 205412144 in words is "two hundred five million, four hundred twelve thousand, one hundred forty-four".