1081052565 has 16 divisors (see below), whose sum is σ = 1745851968. Its totient is φ = 571172096.

The previous prime is 1081052549. The next prime is 1081052653. The reversal of 1081052565 is 5652501801.

It is a cyclic number.

It is not a de Polignac number, because 1081052565 - 2⁴ = 1081052549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335172 + ... + 338381.

It is an arithmetic number, because the mean of its divisors is an integer number (109115748).

Almost surely, 2^1081052565 is an apocalyptic number.

1081052565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1081052565 is a deficient number, since it is larger than the sum of its proper divisors (664799403).

1081052565 is a wasteful number, since it uses less digits than its factorization.

1081052565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673668.

The product of its (nonzero) digits is 12000, while the sum is 33.

The square root of 1081052565 is about 32879.3638168381. The cubic root of 1081052565 is about 1026.3187673459.

The spelling of 1081052565 in words is "one billion, eighty-one million, fifty-two thousand, five hundred sixty-five".