1001287204 has 12 divisors (see below), whose sum is σ = 1753996300. Its totient is φ = 500145408.

The previous prime is 1001287187. The next prime is 1001287219. The reversal of 1001287204 is 4027821001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 523952100 + 477335104 = 22890^2 + 21848^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 120009 + ... + 128080.

Almost surely, 2^1001287204 is an apocalyptic number.

It is an amenable number.

1001287204 is a deficient number, since it is larger than the sum of its proper divisors (752709096).

1001287204 is a wasteful number, since it uses less digits than its factorization.

1001287204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249102 (or 249100 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 1001287204 is about 31643.1225387129. The cubic root of 1001287204 is about 1000.4288840322.

The spelling of 1001287204 in words is "one billion, one million, two hundred eighty-seven thousand, two hundred four".