12171088 has 10 divisors (see below), whose sum is σ = 23581514. Its totient is φ = 6085536.

The previous prime is 12171067. The next prime is 12171101. The reversal of 12171088 is 88017121.

It can be written as a sum of positive squares in only one way, i.e., 11751184 + 419904 = 3428^2 + 648^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 380331 + ... + 380362.

Almost surely, 2^12171088 is an apocalyptic number.

It is an amenable number.

12171088 is a deficient number, since it is larger than the sum of its proper divisors (11410426).

12171088 is an equidigital number, since it uses as much as digits as its factorization.

12171088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760701 (or 760695 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 28.

The square root of 12171088 is about 3488.7086436101. The cubic root of 12171088 is about 230.0257564098.

The spelling of 12171088 in words is "twelve million, one hundred seventy-one thousand, eighty-eight".