200021245 has 8 divisors (see below), whose sum is σ = 240809184. Its totient is φ = 159494544.

The previous prime is 200021243. The next prime is 200021249. The reversal of 200021245 is 542120002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200021245 - 2¹ = 200021243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63619 + ... + 66688.

It is an arithmetic number, because the mean of its divisors is an integer number (30101148).

Almost surely, 2^200021245 is an apocalyptic number.

It is an amenable number.

200021245 is a deficient number, since it is larger than the sum of its proper divisors (40787939).

200021245 is a wasteful number, since it uses less digits than its factorization.

200021245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130619.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 200021245 is about 14142.8867279633. The cubic root of 200021245 is about 584.8242538284.

Adding to 200021245 its reverse (542120002), we get a palindrome (742141247).

The spelling of 200021245 in words is "two hundred million, twenty-one thousand, two hundred forty-five".