145150420718857 has 2 divisors, whose sum is σ = 145150420718858. Its totient is φ = 145150420718856.

The previous prime is 145150420718803. The next prime is 145150420718881. The reversal of 145150420718857 is 758817024051541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110034141760656 + 35116278958201 = 10489716^2 + 5925899^2 .

It is a cyclic number.

It is not a de Polignac number, because 145150420718857 - 2¹¹ = 145150420716809 is a prime.

It is a super-2 number, since 2×145150420718857² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145100420718857) 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, 72575210359428 + 72575210359429.

It is an arithmetic number, because the mean of its divisors is an integer number (72575210359429).

Almost surely, 2^{145150420718857} is an apocalyptic number.

It is an amenable number.

145150420718857 is a deficient number, since it is larger than the sum of its proper divisors (1).

145150420718857 is an equidigital number, since it uses as much as digits as its factorization.

145150420718857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12544000, while the sum is 58.

The spelling of 145150420718857 in words is "one hundred forty-five trillion, one hundred fifty billion, four hundred twenty million, seven hundred eighteen thousand, eight hundred fifty-seven".