100328549 has 2 divisors, whose sum is σ = 100328550. Its totient is φ = 100328548.

The previous prime is 100328539. The next prime is 100328551. The reversal of 100328549 is 945823001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81993025 + 18335524 = 9055^2 + 4282^2 .

It is a cyclic number.

It is not a de Polignac number, because 100328549 - 2²⁴ = 83551333 is a prime.

Together with 100328551, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100328539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50164274 + 50164275.

It is an arithmetic number, because the mean of its divisors is an integer number (50164275).

Almost surely, 2^100328549 is an apocalyptic number.

It is an amenable number.

100328549 is a deficient number, since it is larger than the sum of its proper divisors (1).

100328549 is an equidigital number, since it uses as much as digits as its factorization.

100328549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 100328549 is about 10016.4139790646. The cubic root of 100328549 is about 464.6666574609. Note that the first 4 decimals are identical.

It can be divided in two parts, 10032 and 8549, that added together give a palindrome (18581).

The spelling of 100328549 in words is "one hundred million, three hundred twenty-eight thousand, five hundred forty-nine".