100728533 has 2 divisors, whose sum is σ = 100728534. Its totient is φ = 100728532.

The previous prime is 100728503. The next prime is 100728547. The reversal of 100728533 is 335827001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88040689 + 12687844 = 9383^2 + 3562^2 .

It is an emirp because it is prime and its reverse (335827001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100728533 - 2⁶ = 100728469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100728496 and 100728505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100728503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50364266 + 50364267.

It is an arithmetic number, because the mean of its divisors is an integer number (50364267).

Almost surely, 2^100728533 is an apocalyptic number.

It is an amenable number.

100728533 is a deficient number, since it is larger than the sum of its proper divisors (1).

100728533 is an equidigital number, since it uses as much as digits as its factorization.

100728533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 100728533 is about 10036.3605455364. The cubic root of 100728533 is about 465.2833406313.

The spelling of 100728533 in words is "one hundred million, seven hundred twenty-eight thousand, five hundred thirty-three".