12440093 has 2 divisors, whose sum is σ = 12440094. Its totient is φ = 12440092.

The previous prime is 12440089. The next prime is 12440111. The reversal of 12440093 is 39004421.

12440093 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7300804 + 5139289 = 2702^2 + 2267^2 .

It is an emirp because it is prime and its reverse (39004421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12440093 - 2² = 12440089 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12440053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6220046 + 6220047.

It is an arithmetic number, because the mean of its divisors is an integer number (6220047).

Almost surely, 2^12440093 is an apocalyptic number.

It is an amenable number.

12440093 is a deficient number, since it is larger than the sum of its proper divisors (1).

12440093 is an equidigital number, since it uses as much as digits as its factorization.

12440093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 12440093 is about 3527.0516015505. The cubic root of 12440093 is about 231.7080962659.

The spelling of 12440093 in words is "twelve million, four hundred forty thousand, ninety-three".