126295001009 has 2 divisors, whose sum is σ = 126295001010. Its totient is φ = 126295001008.

The previous prime is 126295000969. The next prime is 126295001051. The reversal of 126295001009 is 900100592621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114495610384 + 11799390625 = 338372^2 + 108625^2 .

It is a cyclic number.

It is not a de Polignac number, because 126295001009 - 2³² = 122000033713 is a prime.

It is a super-2 number, since 2×126295001009² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126295001009.

It is not a weakly prime, because it can be changed into another prime (126295081009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63147500504 + 63147500505.

It is an arithmetic number, because the mean of its divisors is an integer number (63147500505).

Almost surely, 2^126295001009 is an apocalyptic number.

It is an amenable number.

126295001009 is a deficient number, since it is larger than the sum of its proper divisors (1).

126295001009 is an equidigital number, since it uses as much as digits as its factorization.

126295001009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 35.

The spelling of 126295001009 in words is "one hundred twenty-six billion, two hundred ninety-five million, one thousand, nine".