126651143 has 2 divisors, whose sum is σ = 126651144. Its totient is φ = 126651142.

The previous prime is 126651121. The next prime is 126651167. The reversal of 126651143 is 341156621.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126651143 - 2²⁴ = 109873927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126651113) 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, 63325571 + 63325572.

It is an arithmetic number, because the mean of its divisors is an integer number (63325572).

Almost surely, 2^126651143 is an apocalyptic number.

126651143 is a deficient number, since it is larger than the sum of its proper divisors (1).

126651143 is an equidigital number, since it uses as much as digits as its factorization.

126651143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 126651143 is about 11253.9389993015. The cubic root of 126651143 is about 502.1919010980.

The spelling of 126651143 in words is "one hundred twenty-six million, six hundred fifty-one thousand, one hundred forty-three".