146544521445181 has 2 divisors, whose sum is σ = 146544521445182. Its totient is φ = 146544521445180.

The previous prime is 146544521445151. The next prime is 146544521445197. The reversal of 146544521445181 is 181544125445641.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137403150604281 + 9141370840900 = 11721909^2 + 3023470^2 .

It is a cyclic number.

It is not a de Polignac number, because 146544521445181 - 2⁵ = 146544521445149 is a prime.

It is a super-2 number, since 2×146544521445181² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146544521445121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73272260722590 + 73272260722591.

It is an arithmetic number, because the mean of its divisors is an integer number (73272260722591).

Almost surely, 2^{146544521445181} is an apocalyptic number.

It is an amenable number.

146544521445181 is a deficient number, since it is larger than the sum of its proper divisors (1).

146544521445181 is an equidigital number, since it uses as much as digits as its factorization.

146544521445181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12288000, while the sum is 55.

The spelling of 146544521445181 in words is "one hundred forty-six trillion, five hundred forty-four billion, five hundred twenty-one million, four hundred forty-five thousand, one hundred eighty-one".