126005015533 has 2 divisors, whose sum is σ = 126005015534. Its totient is φ = 126005015532.

The previous prime is 126005015531. The next prime is 126005015603. The reversal of 126005015533 is 335510500621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111286958409 + 14718057124 = 333597^2 + 121318^2 .

It is a cyclic number.

It is not a de Polignac number, because 126005015533 - 2¹ = 126005015531 is a prime.

Together with 126005015531, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 126005015495 and 126005015504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126005015531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63002507766 + 63002507767.

It is an arithmetic number, because the mean of its divisors is an integer number (63002507767).

Almost surely, 2^126005015533 is an apocalyptic number.

It is an amenable number.

126005015533 is a deficient number, since it is larger than the sum of its proper divisors (1).

126005015533 is an equidigital number, since it uses as much as digits as its factorization.

126005015533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 126005015533 in words is "one hundred twenty-six billion, five million, fifteen thousand, five hundred thirty-three".