11543465 has 4 divisors (see below), whose sum is σ = 13852164. Its totient is φ = 9234768.

The previous prime is 11543443. The next prime is 11543491. The reversal of 11543465 is 56434511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56434511 = 7 ⋅8062073.

It can be written as a sum of positive squares in 2 ways, for example, as 2374681 + 9168784 = 1541^2 + 3028^2 .

It is a cyclic number.

It is not a de Polignac number, because 11543465 - 2¹⁶ = 11477929 is a prime.

It is a super-3 number, since 3×11543465³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian 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, 1154342 + ... + 1154351.

It is an arithmetic number, because the mean of its divisors is an integer number (3463041).

Almost surely, 2^11543465 is an apocalyptic number.

It is an amenable number.

11543465 is a deficient number, since it is larger than the sum of its proper divisors (2308699).

11543465 is an equidigital number, since it uses as much as digits as its factorization.

11543465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308698.

The product of its digits is 7200, while the sum is 29.

The square root of 11543465 is about 3397.5675122063. The cubic root of 11543465 is about 226.0018860625.

Adding to 11543465 its reverse (56434511), we get a palindrome (67977976).

The spelling of 11543465 in words is "eleven million, five hundred forty-three thousand, four hundred sixty-five".