126705671 has 2 divisors, whose sum is σ = 126705672. Its totient is φ = 126705670.

The previous prime is 126705659. The next prime is 126705679. The reversal of 126705671 is 176507621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126705671 - 2¹⁰ = 126704647 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 (126705679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63352835 + 63352836.

It is an arithmetic number, because the mean of its divisors is an integer number (63352836).

Almost surely, 2^126705671 is an apocalyptic number.

126705671 is a deficient number, since it is larger than the sum of its proper divisors (1).

126705671 is an equidigital number, since it uses as much as digits as its factorization.

126705671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 126705671 is about 11256.3613570283. The cubic root of 126705671 is about 502.2639614848.

The spelling of 126705671 in words is "one hundred twenty-six million, seven hundred five thousand, six hundred seventy-one".