11345869 has 12 divisors (see below), whose sum is σ = 12220956. Its totient is φ = 10528128.

The previous prime is 11345857. The next prime is 11345881. The reversal of 11345869 is 96854311.

It is an interprime number because it is at equal distance from previous prime (11345857) and next prime (11345881).

It can be written as a sum of positive squares in 2 ways, for example, as 7590025 + 3755844 = 2755^2 + 1938^2 .

It is not a de Polignac number, because 11345869 - 2⁵ = 11345837 is a prime.

It is a super-2 number, since 2×11345869² = 257457486730322, 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 (11345849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18837 + ... + 19429.

It is an arithmetic number, because the mean of its divisors is an integer number (1018413).

Almost surely, 2^11345869 is an apocalyptic number.

11345869 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11345869 is a deficient number, since it is larger than the sum of its proper divisors (875087).

11345869 is an equidigital number, since it uses as much as digits as its factorization.

11345869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684 (or 665 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 11345869 is about 3368.3629555023. The cubic root of 11345869 is about 224.7049234788.

The spelling of 11345869 in words is "eleven million, three hundred forty-five thousand, eight hundred sixty-nine".