1200071064 has 16 divisors (see below), whose sum is σ = 3000177720. Its totient is φ = 400023680.

The previous prime is 1200071057. The next prime is 1200071077. The reversal of 1200071064 is 4601700021.

It is a self number, because there is not a number n which added to its sum of digits gives 1200071064.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25001457 + ... + 25001504.

Almost surely, 2^1200071064 is an apocalyptic number.

It is an amenable number.

1200071064 is an abundant number, since it is smaller than the sum of its proper divisors (1800106656).

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

1200071064 is a wasteful number, since it uses less digits than its factorization.

1200071064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50002970 (or 50002966 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 1200071064 is about 34642.0418566804. The cubic root of 1200071064 is about 1062.6795456487.

Adding to 1200071064 its reverse (4601700021), we get a palindrome (5801771085).

The spelling of 1200071064 in words is "one billion, two hundred million, seventy-one thousand, sixty-four".