256126061029 has 2 divisors, whose sum is σ = 256126061030. Its totient is φ = 256126061028.

The previous prime is 256126060999. The next prime is 256126061101. The reversal of 256126061029 is 920160621652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185368997025 + 70757064004 = 430545^2 + 266002^2 .

It is a cyclic number.

It is not a de Polignac number, because 256126061029 - 2⁹ = 256126060517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256126060982 and 256126061000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256126071029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128063030514 + 128063030515.

It is an arithmetic number, because the mean of its divisors is an integer number (128063030515).

Almost surely, 2^256126061029 is an apocalyptic number.

It is an amenable number.

256126061029 is a deficient number, since it is larger than the sum of its proper divisors (1).

256126061029 is an equidigital number, since it uses as much as digits as its factorization.

256126061029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 256126061029 in words is "two hundred fifty-six billion, one hundred twenty-six million, sixty-one thousand, twenty-nine".