540426400121 has 2 divisors, whose sum is σ = 540426400122. Its totient is φ = 540426400120.

The previous prime is 540426400109. The next prime is 540426400183. The reversal of 540426400121 is 121004624045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 514180780096 + 26245620025 = 717064^2 + 162005^2 .

It is a cyclic number.

It is not a de Polignac number, because 540426400121 - 2¹⁴ = 540426383737 is a prime.

It is not a weakly prime, because it can be changed into another prime (540426400321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270213200060 + 270213200061.

It is an arithmetic number, because the mean of its divisors is an integer number (270213200061).

Almost surely, 2^540426400121 is an apocalyptic number.

It is an amenable number.

540426400121 is a deficient number, since it is larger than the sum of its proper divisors (1).

540426400121 is an equidigital number, since it uses as much as digits as its factorization.

540426400121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 29.

The spelling of 540426400121 in words is "five hundred forty billion, four hundred twenty-six million, four hundred thousand, one hundred twenty-one".