1000245225 has 96 divisors (see below), whose sum is σ = 1999872000. Its totient is φ = 431424000.

The previous prime is 1000245217. The next prime is 1000245241. The reversal of 1000245225 is 5225420001.

It is a happy number.

It is not a de Polignac number, because 1000245225 - 2³ = 1000245217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 666526 + ... + 668024.

It is an arithmetic number, because the mean of its divisors is an integer number (20832000).

Almost surely, 2^1000245225 is an apocalyptic number.

1000245225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1000245225 is a deficient number, since it is larger than the sum of its proper divisors (999626775).

1000245225 is a wasteful number, since it uses less digits than its factorization.

1000245225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591 (or 1586 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1000245225 is about 31626.6537117034. The cubic root of 1000245225 is about 1000.0817349859.

Adding to 1000245225 its reverse (5225420001), we get a palindrome (6225665226).

The spelling of 1000245225 in words is "one billion, two hundred forty-five thousand, two hundred twenty-five".