113287469 has 4 divisors (see below), whose sum is σ = 116050620. Its totient is φ = 110524320.

The previous prime is 113287463. The next prime is 113287487. The reversal of 113287469 is 964782311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 964782311 = 23 ⋅41947057.

It can be written as a sum of positive squares in 2 ways, for example, as 21855625 + 91431844 = 4675^2 + 9562^2 .

It is a cyclic number.

It is not a de Polignac number, because 113287469 - 2⁴ = 113287453 is a prime.

It is a super-2 number, since 2×113287469² = 25668101264851922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 2763109 = 113287469 / (1 + 1 + 3 + 2 + 8 + 7 + 4 + 6 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113287463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381514 + ... + 1381595.

It is an arithmetic number, because the mean of its divisors is an integer number (29012655).

Almost surely, 2^113287469 is an apocalyptic number.

It is an amenable number.

113287469 is a deficient number, since it is larger than the sum of its proper divisors (2763151).

113287469 is an equidigital number, since it uses as much as digits as its factorization.

113287469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763150.

The product of its digits is 72576, while the sum is 41.

The square root of 113287469 is about 10643.6586284980. The cubic root of 113287469 is about 483.8684343465.

The spelling of 113287469 in words is "one hundred thirteen million, two hundred eighty-seven thousand, four hundred sixty-nine".