1347128064 has 144 divisors (see below), whose sum is σ = 4112855040. Its totient is φ = 434488320.

The previous prime is 1347128047. The next prime is 1347128071. The reversal of 1347128064 is 4608217431.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211129 + ... + 217415.

Almost surely, 2^1347128064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1347128064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2056427520).

1347128064 is an abundant number, since it is smaller than the sum of its proper divisors (2765726976).

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

1347128064 is an equidigital number, since it uses as much as digits as its factorization.

1347128064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6343 (or 6323 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1347128064 is about 36703.2432354417. The cubic root of 1347128064 is about 1104.4251670536.

The spelling of 1347128064 in words is "one billion, three hundred forty-seven million, one hundred twenty-eight thousand, sixty-four".