11523473 has 4 divisors (see below), whose sum is σ = 12409908. Its totient is φ = 10637040.

The previous prime is 11523461. The next prime is 11523497. The reversal of 11523473 is 37432511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37432511 = 1103 ⋅33937.

It can be written as a sum of positive squares in 2 ways, for example, as 4190209 + 7333264 = 2047^2 + 2708^2 .

It is a cyclic number.

It is not a de Polignac number, because 11523473 - 2¹⁰ = 11522449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11523403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443198 + ... + 443223.

It is an arithmetic number, because the mean of its divisors is an integer number (3102477).

Almost surely, 2^11523473 is an apocalyptic number.

11523473 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11523473 is a deficient number, since it is larger than the sum of its proper divisors (886435).

11523473 is an equidigital number, since it uses as much as digits as its factorization.

11523473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886434.

The product of its digits is 2520, while the sum is 26.

The square root of 11523473 is about 3394.6241323599. The cubic root of 11523473 is about 225.8713406103.

Adding to 11523473 its reverse (37432511), we get a palindrome (48955984).

The spelling of 11523473 in words is "eleven million, five hundred twenty-three thousand, four hundred seventy-three".