126998485129 has 2 divisors, whose sum is σ = 126998485130. Its totient is φ = 126998485128.

The previous prime is 126998485073. The next prime is 126998485147. The reversal of 126998485129 is 921584899621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100438286400 + 26560198729 = 316920^2 + 162973^2 .

It is a cyclic number.

It is not a de Polignac number, because 126998485129 - 2⁷ = 126998485001 is a prime.

It is a super-2 number, since 2×126998485129² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126998485529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63499242564 + 63499242565.

It is an arithmetic number, because the mean of its divisors is an integer number (63499242565).

Almost surely, 2^126998485129 is an apocalyptic number.

It is an amenable number.

126998485129 is a deficient number, since it is larger than the sum of its proper divisors (1).

126998485129 is an equidigital number, since it uses as much as digits as its factorization.

126998485129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22394880, while the sum is 64.

The spelling of 126998485129 in words is "one hundred twenty-six billion, nine hundred ninety-eight million, four hundred eighty-five thousand, one hundred twenty-nine".