1081284669 has 6 divisors (see below), whose sum is σ = 1561855646. Its totient is φ = 720856440.

The previous prime is 1081284653. The next prime is 1081284727. The reversal of 1081284669 is 9664821801.

It can be written as a sum of positive squares in only one way, i.e., 1076168025 + 5116644 = 32805^2 + 2262^2 .

It is not a de Polignac number, because 1081284669 - 2⁴ = 1081284653 is a prime.

It is a super-2 number, since 2×1081284669² = 2338353070828879122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081284629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60071362 + ... + 60071379.

Almost surely, 2^1081284669 is an apocalyptic number.

It is an amenable number.

1081284669 is a deficient number, since it is larger than the sum of its proper divisors (480570977).

1081284669 is a wasteful number, since it uses less digits than its factorization.

1081284669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120142747 (or 120142744 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 1081284669 is about 32882.8932577412. The cubic root of 1081284669 is about 1026.3922129404.

It can be divided in two parts, 10812 and 84669, that added together give a square (95481 = 309²).

The spelling of 1081284669 in words is "one billion, eighty-one million, two hundred eighty-four thousand, six hundred sixty-nine".