145326221149 has 2 divisors, whose sum is σ = 145326221150. Its totient is φ = 145326221148.

The previous prime is 145326221143. The next prime is 145326221153. The reversal of 145326221149 is 941122623541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145280658649 + 45562500 = 381157^2 + 6750^2 .

It is an emirp because it is prime and its reverse (941122623541) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145326221149 is a prime.

It is a super-2 number, since 2×145326221149² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145326221143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72663110574 + 72663110575.

It is an arithmetic number, because the mean of its divisors is an integer number (72663110575).

Almost surely, 2^145326221149 is an apocalyptic number.

It is an amenable number.

145326221149 is a deficient number, since it is larger than the sum of its proper divisors (1).

145326221149 is an equidigital number, since it uses as much as digits as its factorization.

145326221149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The spelling of 145326221149 in words is "one hundred forty-five billion, three hundred twenty-six million, two hundred twenty-one thousand, one hundred forty-nine".