200101520 has 20 divisors (see below), whose sum is σ = 465236220. Its totient is φ = 80040576.

The previous prime is 200101511. The next prime is 200101523. The reversal of 200101520 is 25101002.

It can be written as a sum of positive squares in 2 ways, for example, as 121176064 + 78925456 = 11008^2 + 8884^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (200101523) 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, 1250555 + ... + 1250714.

It is an arithmetic number, because the mean of its divisors is an integer number (23261811).

Almost surely, 2^200101520 is an apocalyptic number.

200101520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200101520 is an abundant number, since it is smaller than the sum of its proper divisors (265134700).

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

200101520 is a wasteful number, since it uses less digits than its factorization.

200101520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501282 (or 2501276 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 200101520 is about 14145.7244423889. The cubic root of 200101520 is about 584.9024796654.

Adding to 200101520 its reverse (25101002), we get a palindrome (225202522).

The spelling of 200101520 in words is "two hundred million, one hundred one thousand, five hundred twenty".