145507461368513 has 2 divisors, whose sum is σ = 145507461368514. Its totient is φ = 145507461368512.

The previous prime is 145507461368483. The next prime is 145507461368519. The reversal of 145507461368513 is 315863164705541.

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., 140677343119504 + 4830118249009 = 11860748^2 + 2197753^2 .

It is a cyclic number.

It is not a de Polignac number, because 145507461368513 - 2⁶ = 145507461368449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (145507461368519) 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, 72753730684256 + 72753730684257.

It is an arithmetic number, because the mean of its divisors is an integer number (72753730684257).

Almost surely, 2^{145507461368513} is an apocalyptic number.

It is an amenable number.

145507461368513 is a deficient number, since it is larger than the sum of its proper divisors (1).

145507461368513 is an equidigital number, since it uses as much as digits as its factorization.

145507461368513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288000, while the sum is 59.

The spelling of 145507461368513 in words is "one hundred forty-five trillion, five hundred seven billion, four hundred sixty-one million, three hundred sixty-eight thousand, five hundred thirteen".