12088505 has 48 divisors (see below), whose sum is σ = 18098640. Its totient is φ = 7687680.

The previous prime is 12088499. The next prime is 12088507. The reversal of 12088505 is 50588021.

It can be written as a sum of positive squares in 8 ways, for example, as 234256 + 11854249 = 484^2 + 3443^2 .

It is not a de Polignac number, because 12088505 - 2⁶ = 12088441 is a prime.

It is a super-2 number, since 2×12088505² = 292263906270050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12088507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 228059 + ... + 228111.

It is an arithmetic number, because the mean of its divisors is an integer number (377055).

Almost surely, 2^12088505 is an apocalyptic number.

It is an amenable number.

12088505 is a deficient number, since it is larger than the sum of its proper divisors (6010135).

12088505 is a wasteful number, since it uses less digits than its factorization.

12088505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 12088505 is about 3476.8527435024. The cubic root of 12088505 is about 229.5043200361.

The spelling of 12088505 in words is "twelve million, eighty-eight thousand, five hundred five".