126347873 has 2 divisors, whose sum is σ = 126347874. Its totient is φ = 126347872.

The previous prime is 126347861. The next prime is 126347951. The reversal of 126347873 is 378743621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117245584 + 9102289 = 10828^2 + 3017^2 .

It is an emirp because it is prime and its reverse (378743621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126347873 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 126347873.

It is not a weakly prime, because it can be changed into another prime (126347843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63173936 + 63173937.

It is an arithmetic number, because the mean of its divisors is an integer number (63173937).

Almost surely, 2^126347873 is an apocalyptic number.

It is an amenable number.

126347873 is a deficient number, since it is larger than the sum of its proper divisors (1).

126347873 is an equidigital number, since it uses as much as digits as its factorization.

126347873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 41.

The square root of 126347873 is about 11240.4569746964. The cubic root of 126347873 is about 501.7907428236.

The spelling of 126347873 in words is "one hundred twenty-six million, three hundred forty-seven thousand, eight hundred seventy-three".