1080545305 has 12 divisors (see below), whose sum is σ = 1508353380. Its totient is φ = 740945184.

The previous prime is 1080545303. The next prime is 1080545329. The reversal of 1080545305 is 5035450801.

It can be written as a sum of positive squares in 2 ways, for example, as 138791961 + 941753344 = 11781^2 + 30688^2 .

It is not a de Polignac number, because 1080545305 - 2¹ = 1080545303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1080545303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2204950 + ... + 2205439.

It is an arithmetic number, because the mean of its divisors is an integer number (125696115).

Almost surely, 2^1080545305 is an apocalyptic number.

It is an amenable number.

1080545305 is a deficient number, since it is larger than the sum of its proper divisors (427808075).

1080545305 is an equidigital number, since it uses as much as digits as its factorization.

1080545305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4410408 (or 4410401 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 1080545305 is about 32871.6489546843. The cubic root of 1080545305 is about 1026.1582164396.

The spelling of 1080545305 in words is "one billion, eighty million, five hundred forty-five thousand, three hundred five".