540025531133161 has 2 divisors, whose sum is σ = 540025531133162. Its totient is φ = 540025531133160.

The previous prime is 540025531133141. The next prime is 540025531133167. The reversal of 540025531133161 is 161331135520045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 288372836623936 + 251652694509225 = 16981544^2 + 15863565^2 .

It is a cyclic number.

It is not a de Polignac number, because 540025531133161 - 2⁹ = 540025531132649 is a prime.

It is not a weakly prime, because it can be changed into another prime (540025531133167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270012765566580 + 270012765566581.

It is an arithmetic number, because the mean of its divisors is an integer number (270012765566581).

Almost surely, 2^{540025531133161} is an apocalyptic number.

It is an amenable number.

540025531133161 is a deficient number, since it is larger than the sum of its proper divisors (1).

540025531133161 is an equidigital number, since it uses as much as digits as its factorization.

540025531133161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 540025531133161 in words is "five hundred forty trillion, twenty-five billion, five hundred thirty-one million, one hundred thirty-three thousand, one hundred sixty-one".