1081770005 has 8 divisors (see below), whose sum is σ = 1298316600. Its totient is φ = 865287616.

The previous prime is 1081769981. The next prime is 1081770013. The reversal of 1081770005 is 5000771801.

It can be written as a sum of positive squares in 4 ways, for example, as 556535281 + 525234724 = 23591^2 + 22918^2 .

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 1081770005 - 2¹⁰ = 1081768981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1081770005.

It is a congruent 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, 36911 + ... + 59379.

It is an arithmetic number, because the mean of its divisors is an integer number (162289575).

Almost surely, 2^1081770005 is an apocalyptic number.

It is an amenable number.

1081770005 is a deficient number, since it is larger than the sum of its proper divisors (216546595).

1081770005 is an equidigital number, since it uses as much as digits as its factorization.

1081770005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32103.

The product of its (nonzero) digits is 1960, while the sum is 29.

The square root of 1081770005 is about 32890.2721940698. The cubic root of 1081770005 is about 1026.5457557872.

The spelling of 1081770005 in words is "one billion, eighty-one million, seven hundred seventy thousand, five".