100325921 has 2 divisors, whose sum is σ = 100325922. Its totient is φ = 100325920.

The previous prime is 100325917. The next prime is 100326041. The reversal of 100325921 is 129523001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62331025 + 37994896 = 7895^2 + 6164^2 .

It is a cyclic number.

It is not a de Polignac number, because 100325921 - 2² = 100325917 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100322921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50162960 + 50162961.

It is an arithmetic number, because the mean of its divisors is an integer number (50162961).

Almost surely, 2^100325921 is an apocalyptic number.

It is an amenable number.

100325921 is a deficient number, since it is larger than the sum of its proper divisors (1).

100325921 is an equidigital number, since it uses as much as digits as its factorization.

100325921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 100325921 is about 10016.2827935317. The cubic root of 100325921 is about 464.6626002753.

Adding to 100325921 its reverse (129523001), we get a palindrome (229848922).

The spelling of 100325921 in words is "one hundred million, three hundred twenty-five thousand, nine hundred twenty-one".