12137479 has 2 divisors, whose sum is σ = 12137480. Its totient is φ = 12137478.

The previous prime is 12137471. The next prime is 12137497. The reversal of 12137479 is 97473121.

Together with next prime (12137497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12137479 - 2³ = 12137471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12137471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6068739 + 6068740.

It is an arithmetic number, because the mean of its divisors is an integer number (6068740).

Almost surely, 2^12137479 is an apocalyptic number.

12137479 is a deficient number, since it is larger than the sum of its proper divisors (1).

12137479 is an equidigital number, since it uses as much as digits as its factorization.

12137479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 34.

The square root of 12137479 is about 3483.8884884565. Note that the first 3 decimals coincide. The cubic root of 12137479 is about 229.8138317076.

The spelling of 12137479 in words is "twelve million, one hundred thirty-seven thousand, four hundred seventy-nine".