145326221191 has 2 divisors, whose sum is σ = 145326221192. Its totient is φ = 145326221190.

The previous prime is 145326221153. The next prime is 145326221219. The reversal of 145326221191 is 191122623541.

145326221191 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 is an emirp because it is prime and its reverse (191122623541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145326221191 - 2³⁷ = 7887267719 is a prime.

It is a super-2 number, since 2×145326221191² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145326221191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145326321191) 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, 72663110595 + 72663110596.

It is an arithmetic number, because the mean of its divisors is an integer number (72663110596).

Almost surely, 2^145326221191 is an apocalyptic number.

145326221191 is a deficient number, since it is larger than the sum of its proper divisors (1).

145326221191 is an equidigital number, since it uses as much as digits as its factorization.

145326221191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 37.

The spelling of 145326221191 in words is "one hundred forty-five billion, three hundred twenty-six million, two hundred twenty-one thousand, one hundred ninety-one".