126437671 has 2 divisors, whose sum is σ = 126437672. Its totient is φ = 126437670.

The previous prime is 126437629. The next prime is 126437699. The reversal of 126437671 is 176734621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126437671 - 2⁷ = 126437543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126437671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126437471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63218835 + 63218836.

It is an arithmetic number, because the mean of its divisors is an integer number (63218836).

Almost surely, 2^126437671 is an apocalyptic number.

126437671 is a deficient number, since it is larger than the sum of its proper divisors (1).

126437671 is an equidigital number, since it uses as much as digits as its factorization.

126437671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 37.

The square root of 126437671 is about 11244.4506757778. The cubic root of 126437671 is about 501.9095922966.

The spelling of 126437671 in words is "one hundred twenty-six million, four hundred thirty-seven thousand, six hundred seventy-one".