1001533217 has 2 divisors, whose sum is σ = 1001533218. Its totient is φ = 1001533216.

The previous prime is 1001533177. The next prime is 1001533237. The reversal of 1001533217 is 7123351001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 946239121 + 55294096 = 30761^2 + 7436^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001533217 - 2²⁶ = 934424353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001533192 and 1001533201.

It is not a weakly prime, because it can be changed into another prime (1001533237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500766608 + 500766609.

It is an arithmetic number, because the mean of its divisors is an integer number (500766609).

Almost surely, 2^1001533217 is an apocalyptic number.

It is an amenable number.

1001533217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001533217 is an equidigital number, since it uses as much as digits as its factorization.

1001533217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 1001533217 is about 31647.0096059644. The cubic root of 1001533217 is about 1000.5108113607.

Adding to 1001533217 its reverse (7123351001), we get a palindrome (8124884218).

The spelling of 1001533217 in words is "one billion, one million, five hundred thirty-three thousand, two hundred seventeen".