126571142701 has 2 divisors, whose sum is σ = 126571142702. Its totient is φ = 126571142700.

The previous prime is 126571142689. The next prime is 126571142723. The reversal of 126571142701 is 107241175621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120749300100 + 5821842601 = 347490^2 + 76301^2 .

It is an emirp because it is prime and its reverse (107241175621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126571142701 - 2²¹ = 126569045549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126571143701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63285571350 + 63285571351.

It is an arithmetic number, because the mean of its divisors is an integer number (63285571351).

Almost surely, 2^126571142701 is an apocalyptic number.

It is an amenable number.

126571142701 is a deficient number, since it is larger than the sum of its proper divisors (1).

126571142701 is an equidigital number, since it uses as much as digits as its factorization.

126571142701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 37.

The spelling of 126571142701 in words is "one hundred twenty-six billion, five hundred seventy-one million, one hundred forty-two thousand, seven hundred one".