1061305266 has 32 divisors (see below), whose sum is σ = 2447319168. Its totient is φ = 300545280.

The previous prime is 1061305253. The next prime is 1061305319. The reversal of 1061305266 is 6625031601.

It is a super-2 number, since 2×1061305266² = 2252737735278661512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107065 + ... + 116556.

It is an arithmetic number, because the mean of its divisors is an integer number (76478724).

Almost surely, 2^1061305266 is an apocalyptic number.

1061305266 is an abundant number, since it is smaller than the sum of its proper divisors (1386013902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1061305266 is a wasteful number, since it uses less digits than its factorization.

1061305266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223746.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1061305266 is about 32577.6804883343. The cubic root of 1061305266 is about 1020.0311620622.

Adding to 1061305266 its reverse (6625031601), we get a palindrome (7686336867).

The spelling of 1061305266 in words is "one billion, sixty-one million, three hundred five thousand, two hundred sixty-six".