1445133533 has 2 divisors, whose sum is σ = 1445133534. Its totient is φ = 1445133532.

The previous prime is 1445133523. The next prime is 1445133611. The reversal of 1445133533 is 3353315441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1423024729 + 22108804 = 37723^2 + 4702^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445133533 - 2⁴ = 1445133517 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1445133533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445133523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722566766 + 722566767.

It is an arithmetic number, because the mean of its divisors is an integer number (722566767).

Almost surely, 2^1445133533 is an apocalyptic number.

It is an amenable number.

1445133533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445133533 is an equidigital number, since it uses as much as digits as its factorization.

1445133533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 32.

The square root of 1445133533 is about 38014.9119820104. The cubic root of 1445133533 is about 1130.5835430678.

Adding to 1445133533 its reverse (3353315441), we get a palindrome (4798448974).

The spelling of 1445133533 in words is "one billion, four hundred forty-five million, one hundred thirty-three thousand, five hundred thirty-three".