1049982565 has 4 divisors (see below), whose sum is σ = 1259979084. Its totient is φ = 839986048.

The previous prime is 1049982529. The next prime is 1049982599. The reversal of 1049982565 is 5652899401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 728892004 + 321090561 = 26998^2 + 17919^2 .

It is a cyclic number.

It is not a de Polignac number, because 1049982565 - 2²⁹ = 513111653 is a prime.

It is a super-2 number, since 2×1049982565² = 2204926773607958450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 3 ways as a sum of consecutive naturals, for example, 104998252 + ... + 104998261.

It is an arithmetic number, because the mean of its divisors is an integer number (314994771).

Almost surely, 2^1049982565 is an apocalyptic number.

It is an amenable number.

1049982565 is a deficient number, since it is larger than the sum of its proper divisors (209996519).

1049982565 is an equidigital number, since it uses as much as digits as its factorization.

1049982565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209996518.

The product of its (nonzero) digits is 777600, while the sum is 49.

The square root of 1049982565 is about 32403.4344630318. The cubic root of 1049982565 is about 1016.3907311105.

The spelling of 1049982565 in words is "one billion, forty-nine million, nine hundred eighty-two thousand, five hundred sixty-five".