145832215362181 has 2 divisors, whose sum is σ = 145832215362182. Its totient is φ = 145832215362180.

The previous prime is 145832215362121. The next prime is 145832215362257. The reversal of 145832215362181 is 181263512238541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135613803971556 + 10218411390625 = 11645334^2 + 3196625^2 .

It is a cyclic number.

It is not a de Polignac number, because 145832215362181 - 2¹⁹ = 145832214837893 is a prime.

It is a super-2 number, since 2×145832215362181² (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 (145832215362121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72916107681090 + 72916107681091.

It is an arithmetic number, because the mean of its divisors is an integer number (72916107681091).

Almost surely, 2^{145832215362181} is an apocalyptic number.

It is an amenable number.

145832215362181 is a deficient number, since it is larger than the sum of its proper divisors (1).

145832215362181 is an equidigital number, since it uses as much as digits as its factorization.

145832215362181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2764800, while the sum is 52.

The spelling of 145832215362181 in words is "one hundred forty-five trillion, eight hundred thirty-two billion, two hundred fifteen million, three hundred sixty-two thousand, one hundred eighty-one".