200143254 has 16 divisors (see below), whose sum is σ = 413199360. Its totient is φ = 64562280.

The previous prime is 200143247. The next prime is 200143267. The reversal of 200143254 is 452341002.

It is a self number, because there is not a number n which added to its sum of digits gives 200143254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537834 + ... + 538205.

It is an arithmetic number, because the mean of its divisors is an integer number (25824960).

Almost surely, 2^200143254 is an apocalyptic number.

200143254 is an abundant number, since it is smaller than the sum of its proper divisors (213056106).

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

200143254 is a wasteful number, since it uses less digits than its factorization.

200143254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076075.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 200143254 is about 14147.1995108573. The cubic root of 200143254 is about 584.9431400649.

Adding to 200143254 its reverse (452341002), we get a palindrome (652484256).

The spelling of 200143254 in words is "two hundred million, one hundred forty-three thousand, two hundred fifty-four".