12742651 has 2 divisors, whose sum is σ = 12742652. Its totient is φ = 12742650.

The previous prime is 12742637. The next prime is 12742679. The reversal of 12742651 is 15624721.

It is an a-pointer prime, because the next prime (12742679) can be obtained adding 12742651 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12742651 - 2⁹ = 12742139 is a prime.

It is not a weakly prime, because it can be changed into another prime (12742151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6371325 + 6371326.

It is an arithmetic number, because the mean of its divisors is an integer number (6371326).

Almost surely, 2^12742651 is an apocalyptic number.

12742651 is a deficient number, since it is larger than the sum of its proper divisors (1).

12742651 is an equidigital number, since it uses as much as digits as its factorization.

12742651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 28.

The square root of 12742651 is about 3569.6850001086. The cubic root of 12742651 is about 233.5715428973.

It can be divided in two parts, 127 and 42651, that added together give a triangular number (42778 = T₂₉₂).

The spelling of 12742651 in words is "twelve million, seven hundred forty-two thousand, six hundred fifty-one".