1445133617 has 2 divisors, whose sum is σ = 1445133618. Its totient is φ = 1445133616.

The previous prime is 1445133611. The next prime is 1445133629. The reversal of 1445133617 is 7163315441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1443696016 + 1437601 = 37996^2 + 1199^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445133617 - 2¹⁰ = 1445132593 is a prime.

It is a super-2 number, since 2×1445133617² = 4176822341967005378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1445133611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722566808 + 722566809.

It is an arithmetic number, because the mean of its divisors is an integer number (722566809).

Almost surely, 2^1445133617 is an apocalyptic number.

It is an amenable number.

1445133617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445133617 is an equidigital number, since it uses as much as digits as its factorization.

1445133617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 1445133617 is about 38014.9130868400. The cubic root of 1445133617 is about 1130.5835649733.

The spelling of 1445133617 in words is "one billion, four hundred forty-five million, one hundred thirty-three thousand, six hundred seventeen".