1113874565 has 4 divisors (see below), whose sum is σ = 1336649484. Its totient is φ = 891099648.

The previous prime is 1113874523. The next prime is 1113874589. The reversal of 1113874565 is 5654783111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5654783111 = 83 ⋅68129917.

It can be written as a sum of positive squares in 2 ways, for example, as 336245569 + 777628996 = 18337^2 + 27886^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113874565 - 2⁶ = 1113874501 is a prime.

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, 111387452 + ... + 111387461.

It is an arithmetic number, because the mean of its divisors is an integer number (334162371).

Almost surely, 2^1113874565 is an apocalyptic number.

It is an amenable number.

1113874565 is a deficient number, since it is larger than the sum of its proper divisors (222774919).

1113874565 is an equidigital number, since it uses as much as digits as its factorization.

1113874565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222774918.

The product of its digits is 100800, while the sum is 41.

The square root of 1113874565 is about 33374.7593998818. The cubic root of 1113874565 is about 1036.6021271405.

The spelling of 1113874565 in words is "one billion, one hundred thirteen million, eight hundred seventy-four thousand, five hundred sixty-five".