200145530 has 32 divisors (see below), whose sum is σ = 401360400. Its totient is φ = 71350272.

The previous prime is 200145511. The next prime is 200145541. The reversal of 200145530 is 35541002.

It can be written as a sum of positive squares in 8 ways, for example, as 14341369 + 185804161 = 3787^2 + 13631^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22775 + ... + 30314.

Almost surely, 2^200145530 is an apocalyptic number.

200145530 is an abundant number, since it is smaller than the sum of its proper divisors (201214870).

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

200145530 is a wasteful number, since it uses less digits than its factorization.

200145530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53138.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 200145530 is about 14147.2799505771. The cubic root of 200145530 is about 584.9453573527.

Adding to 200145530 its reverse (35541002), we get a palindrome (235686532).

The spelling of 200145530 in words is "two hundred million, one hundred forty-five thousand, five hundred thirty".