1200071152 has 30 divisors (see below), whose sum is σ = 2704753968. Its totient is φ = 514315872.

The previous prime is 1200071137. The next prime is 1200071153. The reversal of 1200071152 is 2511700021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200071153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 764568 + ... + 766135.

Almost surely, 2^1200071152 is an apocalyptic number.

It is an amenable number.

1200071152 is an abundant number, since it is smaller than the sum of its proper divisors (1504682816).

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

1200071152 is a wasteful number, since it uses less digits than its factorization.

1200071152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530725 (or 1530712 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 1200071152 is about 34642.0431268134. The cubic root of 1200071152 is about 1062.6795716238.

Adding to 1200071152 its reverse (2511700021), we get a palindrome (3711771173).

The spelling of 1200071152 in words is "one billion, two hundred million, seventy-one thousand, one hundred fifty-two".