10119809 has 4 divisors (see below), whose sum is σ = 11565504. Its totient is φ = 8674116.

The previous prime is 10119803. The next prime is 10119827. The reversal of 10119809 is 90891101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10119809 - 2⁸ = 10119553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10119803) 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, 722837 + ... + 722850.

It is an arithmetic number, because the mean of its divisors is an integer number (2891376).

Almost surely, 2^10119809 is an apocalyptic number.

It is an amenable number.

10119809 is a deficient number, since it is larger than the sum of its proper divisors (1445695).

10119809 is an equidigital number, since it uses as much as digits as its factorization.

10119809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445694.

The product of its (nonzero) digits is 648, while the sum is 29.

The square root of 10119809 is about 3181.1647238079. The cubic root of 10119809 is about 216.3004577815.

The spelling of 10119809 in words is "ten million, one hundred nineteen thousand, eight hundred nine".