100025789 has 2 divisors, whose sum is σ = 100025790. Its totient is φ = 100025788.

The previous prime is 100025743. The next prime is 100025797. The reversal of 100025789 is 987520001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97022500 + 3003289 = 9850^2 + 1733^2 .

It is a cyclic number.

It is not a de Polignac number, because 100025789 - 2⁸ = 100025533 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100025719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50012894 + 50012895.

It is an arithmetic number, because the mean of its divisors is an integer number (50012895).

Almost surely, 2^100025789 is an apocalyptic number.

It is an amenable number.

100025789 is a deficient number, since it is larger than the sum of its proper divisors (1).

100025789 is an equidigital number, since it uses as much as digits as its factorization.

100025789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 100025789 is about 10001.2893668767. The cubic root of 100025789 is about 464.1987805766.

The spelling of 100025789 in words is "one hundred million, twenty-five thousand, seven hundred eighty-nine".