126291400033 has 2 divisors, whose sum is σ = 126291400034. Its totient is φ = 126291400032.

The previous prime is 126291400031. The next prime is 126291400099. The reversal of 126291400033 is 330004192621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96635804769 + 29655595264 = 310863^2 + 172208^2 .

It is a cyclic number.

It is not a de Polignac number, because 126291400033 - 2¹ = 126291400031 is a prime.

Together with 126291400031, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 126291399968 and 126291400004.

It is not a weakly prime, because it can be changed into another prime (126291400031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63145700016 + 63145700017.

It is an arithmetic number, because the mean of its divisors is an integer number (63145700017).

Almost surely, 2^126291400033 is an apocalyptic number.

It is an amenable number.

126291400033 is a deficient number, since it is larger than the sum of its proper divisors (1).

126291400033 is an equidigital number, since it uses as much as digits as its factorization.

126291400033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

Adding to 126291400033 its reverse (330004192621), we get a palindrome (456295592654).

The spelling of 126291400033 in words is "one hundred twenty-six billion, two hundred ninety-one million, four hundred thousand, thirty-three".