1445212253 has 2 divisors, whose sum is σ = 1445212254. Its totient is φ = 1445212252.

The previous prime is 1445212247. The next prime is 1445212271. The reversal of 1445212253 is 3522125441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1131851449 + 313360804 = 33643^2 + 17702^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445212253 - 2⁶ = 1445212189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445212553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722606126 + 722606127.

It is an arithmetic number, because the mean of its divisors is an integer number (722606127).

Almost surely, 2^1445212253 is an apocalyptic number.

It is an amenable number.

1445212253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445212253 is an equidigital number, since it uses as much as digits as its factorization.

1445212253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9600, while the sum is 29.

The square root of 1445212253 is about 38015.9473510789. The cubic root of 1445212253 is about 1130.6040712563.

Adding to 1445212253 its reverse (3522125441), we get a palindrome (4967337694).

The spelling of 1445212253 in words is "one billion, four hundred forty-five million, two hundred twelve thousand, two hundred fifty-three".