1061055605 has 12 divisors (see below), whose sum is σ = 1305089796. Its totient is φ = 828134400.

The previous prime is 1061055581. The next prime is 1061055641. The reversal of 1061055605 is 5065501601.

It can be written as a sum of positive squares in 6 ways, for example, as 661415524 + 399640081 = 25718^2 + 19991^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1061055605 is a prime.

It is a super-3 number, since 3×1061055605³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54716 + ... + 71525.

It is an arithmetic number, because the mean of its divisors is an integer number (108757483).

Almost surely, 2^1061055605 is an apocalyptic number.

It is an amenable number.

1061055605 is a deficient number, since it is larger than the sum of its proper divisors (244034191).

1061055605 is an equidigital number, since it uses as much as digits as its factorization.

1061055605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126328 (or 126287 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 1061055605 is about 32573.8484831007. The cubic root of 1061055605 is about 1019.9511718905.

The spelling of 1061055605 in words is "one billion, sixty-one million, fifty-five thousand, six hundred five".