1053128705 has 8 divisors (see below), whose sum is σ = 1284472104. Its totient is φ = 828691200.

The previous prime is 1053128693. The next prime is 1053128711. The reversal of 1053128705 is 5078213501.

It can be written as a sum of positive squares in 4 ways, for example, as 17833729 + 1035294976 = 4223^2 + 32176^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1053128705 - 2¹⁶ = 1053063169 is a prime.

It is a super-2 number, since 2×1053128705² = 2218160138589954050, which contains 22 as substring.

It is a Duffinian number.

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, 1726136 + ... + 1726745.

It is an arithmetic number, because the mean of its divisors is an integer number (160559013).

Almost surely, 2^1053128705 is an apocalyptic number.

It is an amenable number.

1053128705 is a deficient number, since it is larger than the sum of its proper divisors (231343399).

1053128705 is an equidigital number, since it uses as much as digits as its factorization.

1053128705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452947.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 1053128705 is about 32451.9445488248. The cubic root of 1053128705 is about 1017.4048809657.

The spelling of 1053128705 in words is "one billion, fifty-three million, one hundred twenty-eight thousand, seven hundred five".