100001533 has 2 divisors, whose sum is σ = 100001534. Its totient is φ = 100001532.

The previous prime is 100001507. The next prime is 100001537. The reversal of 100001533 is 335100001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95218564 + 4782969 = 9758^2 + 2187^2 .

It is an emirp because it is prime and its reverse (335100001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100001533 - 2²¹ = 97904381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100001537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000766 + 50000767.

It is an arithmetic number, because the mean of its divisors is an integer number (50000767).

Almost surely, 2^100001533 is an apocalyptic number.

It is an amenable number.

100001533 is a deficient number, since it is larger than the sum of its proper divisors (1).

100001533 is an equidigital number, since it uses as much as digits as its factorization.

100001533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45, while the sum is 13.

The square root of 100001533 is about 10000.0766497062. The cubic root of 100001533 is about 464.1612552011.

Adding to 100001533 its reverse (335100001), we get a palindrome (435101534).

The spelling of 100001533 in words is "one hundred million, one thousand, five hundred thirty-three".