10125109 has 2 divisors, whose sum is σ = 10125110. Its totient is φ = 10125108.

The previous prime is 10125103. The next prime is 10125131. The reversal of 10125109 is 90152101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9746884 + 378225 = 3122^2 + 615^2 .

It is a cyclic number.

It is not a de Polignac number, because 10125109 - 2⁵ = 10125077 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 (10125103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5062554 + 5062555.

It is an arithmetic number, because the mean of its divisors is an integer number (5062555).

Almost surely, 2^10125109 is an apocalyptic number.

It is an amenable number.

10125109 is a deficient number, since it is larger than the sum of its proper divisors (1).

10125109 is an equidigital number, since it uses as much as digits as its factorization.

10125109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 10125109 is about 3181.9976429910. The cubic root of 10125109 is about 216.3382118653.

The spelling of 10125109 in words is "ten million, one hundred twenty-five thousand, one hundred nine".