10249109 has 4 divisors (see below), whose sum is σ = 11037516. Its totient is φ = 9460704.

The previous prime is 10249081. The next prime is 10249121. The reversal of 10249109 is 90194201.

10249109 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4972900 + 5276209 = 2230^2 + 2297^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10249109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10249199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394184 + ... + 394209.

It is an arithmetic number, because the mean of its divisors is an integer number (2759379).

Almost surely, 2^10249109 is an apocalyptic number.

It is an amenable number.

10249109 is a deficient number, since it is larger than the sum of its proper divisors (788407).

10249109 is an equidigital number, since it uses as much as digits as its factorization.

10249109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788406.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 10249109 is about 3201.4229648705. The cubic root of 10249109 is about 217.2177799060.

The spelling of 10249109 in words is "ten million, two hundred forty-nine thousand, one hundred nine".