1002000125 has 16 divisors (see below), whose sum is σ = 1429139712. Its totient is φ = 687085200.

The previous prime is 1002000101. The next prime is 1002000137. The reversal of 1002000125 is 5210002001.

It is not a de Polignac number, because 1002000125 - 2²² = 997805821 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 571697 + ... + 573446.

It is an arithmetic number, because the mean of its divisors is an integer number (89321232).

Almost surely, 2^1002000125 is an apocalyptic number.

It is an amenable number.

1002000125 is a deficient number, since it is larger than the sum of its proper divisors (427139587).

1002000125 is an equidigital number, since it uses as much as digits as its factorization.

1002000125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145165 (or 1145155 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1002000125 is about 31654.3855571388. The cubic root of 1002000125 is about 1000.6662643266. Note that the first 3 decimals are identical.

Adding to 1002000125 its reverse (5210002001), we get a palindrome (6212002126).

The spelling of 1002000125 in words is "one billion, two million, one hundred twenty-five", and thus it is an aban number.