202000001 has 24 divisors (see below), whose sum is σ = 261917280. Its totient is φ = 154369152.

The previous prime is 201999997. The next prime is 202000003. The reversal of 202000001 is 100000202.

It is not a de Polignac number, because 202000001 - 2² = 201999997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202000003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9446 + ... + 22208.

It is an arithmetic number, because the mean of its divisors is an integer number (10913220).

Almost surely, 2^202000001 is an apocalyptic number.

It is an amenable number.

202000001 is a deficient number, since it is larger than the sum of its proper divisors (59917279).

202000001 is a wasteful number, since it uses less digits than its factorization.

202000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12813 (or 12806 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 5.

The square root of 202000001 is about 14212.6704387318. The cubic root of 202000001 is about 586.7464318125.

Adding to 202000001 its reverse (100000202), we get a palindrome (302000203).

The spelling of 202000001 in words is "two hundred two million, one", and thus it is an aban number.