1445190653 has 2 divisors, whose sum is σ = 1445190654. Its totient is φ = 1445190652.

The previous prime is 1445190641. The next prime is 1445190679. The reversal of 1445190653 is 3560915441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1416920164 + 28270489 = 37642^2 + 5317^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445190653 - 2¹² = 1445186557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445190353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722595326 + 722595327.

It is an arithmetic number, because the mean of its divisors is an integer number (722595327).

Almost surely, 2^1445190653 is an apocalyptic number.

It is an amenable number.

1445190653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445190653 is an equidigital number, since it uses as much as digits as its factorization.

1445190653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 1445190653 is about 38015.6632587148. The cubic root of 1445190653 is about 1130.5984385959.

The spelling of 1445190653 in words is "one billion, four hundred forty-five million, one hundred ninety thousand, six hundred fifty-three".