200145144 has 64 divisors (see below), whose sum is σ = 509796000. Its totient is φ = 65470464.

The previous prime is 200145109. The next prime is 200145167. The reversal of 200145144 is 441541002.

200145144 = T₁₉₂ + T₁₉₃ + ... + T₁₀₆₄.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 200145144.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346584 + ... + 347160.

Almost surely, 2^200145144 is an apocalyptic number.

200145144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

200145144 is an abundant number, since it is smaller than the sum of its proper divisors (309650856).

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

200145144 is a wasteful number, since it uses less digits than its factorization.

200145144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 200145144 is about 14147.2663083721. The cubic root of 200145144 is about 584.9449813112.

Adding to 200145144 its reverse (441541002), we get a palindrome (641686146).

The spelling of 200145144 in words is "two hundred million, one hundred forty-five thousand, one hundred forty-four".