200001015 has 16 divisors (see below), whose sum is σ = 355557600. Its totient is φ = 106667136.

The previous prime is 200001013. The next prime is 200001019. The reversal of 200001015 is 510100002.

It is a happy number.

It is not a de Polignac number, because 200001015 - 2¹ = 200001013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 200000988 and 200001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200001013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 740610 + ... + 740879.

It is an arithmetic number, because the mean of its divisors is an integer number (22222350).

Almost surely, 2^200001015 is an apocalyptic number.

200001015 is a deficient number, since it is larger than the sum of its proper divisors (155556585).

200001015 is a wasteful number, since it uses less digits than its factorization.

200001015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481503 (or 1481497 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 200001015 is about 14142.1715093546. The cubic root of 200001015 is about 584.8045369336.

Adding to 200001015 its reverse (510100002), we get a palindrome (710101017).

The spelling of 200001015 in words is "two hundred million, one thousand, fifteen".