145115166481 has 2 divisors, whose sum is σ = 145115166482. Its totient is φ = 145115166480.

The previous prime is 145115166467. The next prime is 145115166503. The reversal of 145115166481 is 184661511541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93351636225 + 51763530256 = 305535^2 + 227516^2 .

It is a cyclic number.

It is not a de Polignac number, because 145115166481 - 2⁷ = 145115166353 is a prime.

It is a super-2 number, since 2×145115166481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145115163481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72557583240 + 72557583241.

It is an arithmetic number, because the mean of its divisors is an integer number (72557583241).

Almost surely, 2^145115166481 is an apocalyptic number.

It is an amenable number.

145115166481 is a deficient number, since it is larger than the sum of its proper divisors (1).

145115166481 is an equidigital number, since it uses as much as digits as its factorization.

145115166481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 115200, while the sum is 43.

The spelling of 145115166481 in words is "one hundred forty-five billion, one hundred fifteen million, one hundred sixty-six thousand, four hundred eighty-one".