1012500039 has 4 divisors (see below), whose sum is σ = 1350000056. Its totient is φ = 675000024.

The previous prime is 1012500037. The next prime is 1012500061. The reversal of 1012500039 is 9300052101.

1012500039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9300052101 = 3 ⋅3100017367.

It is not a de Polignac number, because 1012500039 - 2¹ = 1012500037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012499988 and 1012500024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012500037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168750004 + ... + 168750009.

It is an arithmetic number, because the mean of its divisors is an integer number (337500014).

Almost surely, 2^1012500039 is an apocalyptic number.

1012500039 is a deficient number, since it is larger than the sum of its proper divisors (337500017).

1012500039 is an equidigital number, since it uses as much as digits as its factorization.

1012500039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337500016.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 1012500039 is about 31819.8057662205. The cubic root of 1012500039 is about 1004.1494380160.

The spelling of 1012500039 in words is "one billion, twelve million, five hundred thousand, thirty-nine".