1265710012 has 12 divisors (see below), whose sum is σ = 2531420080. Its totient is φ = 542447136.

The previous prime is 1265709997. The next prime is 1265710021. The reversal of 1265710012 is 2100175621.

1265710012 is an admirable number.

It is a congruent number.

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, 22601937 + ... + 22601992.

Almost surely, 2^1265710012 is an apocalyptic number.

It is an amenable number.

1265710012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1265710012 is a wasteful number, since it uses less digits than its factorization.

1265710012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45203940 (or 45203938 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 1265710012 is about 35576.8184637131. The cubic root of 1265710012 is about 1081.7113961553.

Adding to 1265710012 its reverse (2100175621), we get a palindrome (3365885633).

The spelling of 1265710012 in words is "one billion, two hundred sixty-five million, seven hundred ten thousand, twelve".