12740423 has 2 divisors, whose sum is σ = 12740424. Its totient is φ = 12740422.

The previous prime is 12740369. The next prime is 12740449. The reversal of 12740423 is 32404721.

12740423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12740423 - 2⁶ = 12740359 is a prime.

It is equal to p₈₃₃₄₄₁ and since 12740423 and 833441 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12742423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6370211 + 6370212.

It is an arithmetic number, because the mean of its divisors is an integer number (6370212).

Almost surely, 2^12740423 is an apocalyptic number.

12740423 is a deficient number, since it is larger than the sum of its proper divisors (1).

12740423 is an equidigital number, since it uses as much as digits as its factorization.

12740423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 12740423 is about 3569.3729141125. The cubic root of 12740423 is about 233.5579290967.

The spelling of 12740423 in words is "twelve million, seven hundred forty thousand, four hundred twenty-three".