12140667457 has 2 divisors, whose sum is σ = 12140667458. Its totient is φ = 12140667456.

The previous prime is 12140667401. The next prime is 12140667463. The reversal of 12140667457 is 75476604121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10381368321 + 1759299136 = 101889^2 + 41944^2 .

It is an emirp because it is prime and its reverse (75476604121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12140667457 - 2²³ = 12132278849 is a prime.

It is not a weakly prime, because it can be changed into another prime (12140667467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6070333728 + 6070333729.

It is an arithmetic number, because the mean of its divisors is an integer number (6070333729).

Almost surely, 2^12140667457 is an apocalyptic number.

It is an amenable number.

12140667457 is a deficient number, since it is larger than the sum of its proper divisors (1).

12140667457 is an equidigital number, since it uses as much as digits as its factorization.

12140667457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 12140667457 in words is "twelve billion, one hundred forty million, six hundred sixty-seven thousand, four hundred fifty-seven".