1030505705 has 8 divisors (see below), whose sum is σ = 1238437512. Its totient is φ = 823184128.

The previous prime is 1030505701. The next prime is 1030505719. The reversal of 1030505705 is 5075050301.

It can be written as a sum of positive squares in 4 ways, for example, as 115261696 + 915244009 = 10736^2 + 30253^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1030505705 - 2² = 1030505701 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1030505701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148832 + ... + 155601.

It is an arithmetic number, because the mean of its divisors is an integer number (154804689).

Almost surely, 2^1030505705 is an apocalyptic number.

It is an amenable number.

1030505705 is a deficient number, since it is larger than the sum of its proper divisors (207931807).

1030505705 is an equidigital number, since it uses as much as digits as its factorization.

1030505705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305115.

The product of its (nonzero) digits is 2625, while the sum is 26.

The square root of 1030505705 is about 32101.4906974738. The cubic root of 1030505705 is about 1010.0668860714.

The spelling of 1030505705 in words is "one billion, thirty million, five hundred five thousand, seven hundred five".