1073565312 has 64 divisors (see below), whose sum is σ = 2859386400. Its totient is φ = 356885504.

The previous prime is 1073565301. The next prime is 1073565349. The reversal of 1073565312 is 2135653701.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145783 + ... + 152969.

Almost surely, 2^1073565312 is an apocalyptic number.

1073565312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1073565312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1429693200).

1073565312 is an abundant number, since it is smaller than the sum of its proper divisors (1785821088).

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

1073565312 is an equidigital number, since it uses as much as digits as its factorization.

1073565312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7593 (or 7581 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 1073565312 is about 32765.3065299258. The cubic root of 1073565312 is about 1023.9438852713.

The spelling of 1073565312 in words is "one billion, seventy-three million, five hundred sixty-five thousand, three hundred twelve".