145220224212409 has 2 divisors, whose sum is σ = 145220224212410. Its totient is φ = 145220224212408.

The previous prime is 145220224212379. The next prime is 145220224212439. The reversal of 145220224212409 is 904212422022541.

It is a balanced prime because it is at equal distance from previous prime (145220224212379) and next prime (145220224212439).

It can be written as a sum of positive squares in only one way, i.e., 139539881290000 + 5680342922409 = 11812700^2 + 2383347^2 .

It is a cyclic number.

It is not a de Polignac number, because 145220224212409 - 2⁵ = 145220224212377 is a prime.

It is not a weakly prime, because it can be changed into another prime (145220224212439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72610112106204 + 72610112106205.

It is an arithmetic number, because the mean of its divisors is an integer number (72610112106205).

Almost surely, 2^{145220224212409} is an apocalyptic number.

It is an amenable number.

145220224212409 is a deficient number, since it is larger than the sum of its proper divisors (1).

145220224212409 is an equidigital number, since it uses as much as digits as its factorization.

145220224212409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 145220224212409 in words is "one hundred forty-five trillion, two hundred twenty billion, two hundred twenty-four million, two hundred twelve thousand, four hundred nine".