9925109 has 2 divisors, whose sum is σ = 9925110. Its totient is φ = 9925108.

The previous prime is 9925081. The next prime is 9925117. The reversal of 9925109 is 9015299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9672100 + 253009 = 3110^2 + 503^2 .

It is a cyclic number.

It is not a de Polignac number, because 9925109 - 2¹⁶ = 9859573 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 (9925159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4962554 + 4962555.

It is an arithmetic number, because the mean of its divisors is an integer number (4962555).

Almost surely, 2^9925109 is an apocalyptic number.

It is an amenable number.

9925109 is a deficient number, since it is larger than the sum of its proper divisors (1).

9925109 is an equidigital number, since it uses as much as digits as its factorization.

9925109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 35.

The square root of 9925109 is about 3150.4140997653. The cubic root of 9925109 is about 214.9042948839.

Adding to 9925109 its product of nonzero digits (7290), we get a palindrome (9932399).

The spelling of 9925109 in words is "nine million, nine hundred twenty-five thousand, one hundred nine".