145619550255217 has 2 divisors, whose sum is σ = 145619550255218. Its totient is φ = 145619550255216.

The previous prime is 145619550255161. The next prime is 145619550255259. The reversal of 145619550255217 is 712552055916541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108554539940401 + 37065010314816 = 10418951^2 + 6088104^2 .

It is a cyclic number.

It is not a de Polignac number, because 145619550255217 - 2⁴⁷ = 4882061899889 is a prime.

It is a super-3 number, since 3×145619550255217³ (a number of 43 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (145619550252217) 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, 72809775127608 + 72809775127609.

It is an arithmetic number, because the mean of its divisors is an integer number (72809775127609).

Almost surely, 2^{145619550255217} is an apocalyptic number.

It is an amenable number.

145619550255217 is a deficient number, since it is larger than the sum of its proper divisors (1).

145619550255217 is an equidigital number, since it uses as much as digits as its factorization.

145619550255217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900000, while the sum is 58.

The spelling of 145619550255217 in words is "one hundred forty-five trillion, six hundred nineteen billion, five hundred fifty million, two hundred fifty-five thousand, two hundred seventeen".