202019001 has 16 divisors (see below), whose sum is σ = 291201600. Its totient is φ = 124141248.

The previous prime is 202018997. The next prime is 202019011. The reversal of 202019001 is 100910202.

It is a happy number.

It is not a de Polignac number, because 202019001 - 2² = 202018997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202019011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45786 + ... + 50003.

It is an arithmetic number, because the mean of its divisors is an integer number (18200100).

Almost surely, 2^202019001 is an apocalyptic number.

It is an amenable number.

202019001 is a deficient number, since it is larger than the sum of its proper divisors (89182599).

202019001 is a wasteful number, since it uses less digits than its factorization.

202019001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95848.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 202019001 is about 14213.3388406806. The cubic root of 202019001 is about 586.7648275759.

Adding to 202019001 its reverse (100910202), we get a palindrome (302929203).

The spelling of 202019001 in words is "two hundred two million, nineteen thousand, one".