12319641 has 8 divisors (see below), whose sum is σ = 18251360. Its totient is φ = 8213076.

The previous prime is 12319627. The next prime is 12319649. The reversal of 12319641 is 14691321.

12319641 is a `hidden beast` number, since 1 + 2 + 3 + 19 + 641 = 666.

It is not a de Polignac number, because 12319641 - 2⁵ = 12319609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 456283 = 12319641 / (1 + 2 + 3 + 1 + 9 + 6 + 4 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12319649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228115 + ... + 228168.

It is an arithmetic number, because the mean of its divisors is an integer number (2281420).

Almost surely, 2^12319641 is an apocalyptic number.

It is an amenable number.

12319641 is a deficient number, since it is larger than the sum of its proper divisors (5931719).

12319641 is an equidigital number, since it uses as much as digits as its factorization.

12319641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456292 (or 456286 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 12319641 is about 3509.9346147756. The cubic root of 12319641 is about 230.9578266744.

The spelling of 12319641 in words is "twelve million, three hundred nineteen thousand, six hundred forty-one".