1200159264 has 24 divisors (see below), whose sum is σ = 3150418320. Its totient is φ = 400053056.

The previous prime is 1200159253. The next prime is 1200159277. The reversal of 1200159264 is 4629510021.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6250734 + ... + 6250925.

It is an arithmetic number, because the mean of its divisors is an integer number (131267430).

Almost surely, 2^1200159264 is an apocalyptic number.

It is an amenable number.

1200159264 is an abundant number, since it is smaller than the sum of its proper divisors (1950259056).

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

1200159264 is a wasteful number, since it uses less digits than its factorization.

1200159264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12501672 (or 12501664 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1200159264 is about 34643.3148529410. The cubic root of 1200159264 is about 1062.7055791181.

Adding to 1200159264 its reverse (4629510021), we get a palindrome (5829669285).

The spelling of 1200159264 in words is "one billion, two hundred million, one hundred fifty-nine thousand, two hundred sixty-four".