145352320777 has 2 divisors, whose sum is σ = 145352320778. Its totient is φ = 145352320776.

The previous prime is 145352320753. The next prime is 145352320781. The reversal of 145352320777 is 777023253541.

145352320777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129372579856 + 15979740921 = 359684^2 + 126411^2 .

It is a cyclic number.

It is not a de Polignac number, because 145352320777 - 2²⁷ = 145218103049 is a prime.

It is a super-2 number, since 2×145352320777² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145352300777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72676160388 + 72676160389.

It is an arithmetic number, because the mean of its divisors is an integer number (72676160389).

Almost surely, 2^145352320777 is an apocalyptic number.

It is an amenable number.

145352320777 is a deficient number, since it is larger than the sum of its proper divisors (1).

145352320777 is an equidigital number, since it uses as much as digits as its factorization.

145352320777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1234800, while the sum is 46.

The spelling of 145352320777 in words is "one hundred forty-five billion, three hundred fifty-two million, three hundred twenty thousand, seven hundred seventy-seven".