11523465 has 40 divisors (see below), whose sum is σ = 21242760. Its totient is φ = 5971968.

The previous prime is 11523461. The next prime is 11523497. The reversal of 11523465 is 56432511.

It can be written as a sum of positive squares in 4 ways, for example, as 2595321 + 8928144 = 1611^2 + 2988^2 .

It is not a de Polignac number, because 11523465 - 2² = 11523461 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11523461) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14601 + ... + 15369.

It is an arithmetic number, because the mean of its divisors is an integer number (531069).

Almost surely, 2^11523465 is an apocalyptic number.

11523465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11523465 is a deficient number, since it is larger than the sum of its proper divisors (9719295).

11523465 is an equidigital number, since it uses as much as digits as its factorization.

11523465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823 (or 814 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 11523465 is about 3394.6229540260. The cubic root of 11523465 is about 225.8712883410.

Adding to 11523465 its reverse (56432511), we get a palindrome (67955976).

The spelling of 11523465 in words is "eleven million, five hundred twenty-three thousand, four hundred sixty-five".