10194409 has 4 divisors (see below), whose sum is σ = 10299604. Its totient is φ = 10089216.

The previous prime is 10194389. The next prime is 10194413. The reversal of 10194409 is 90449101.

10194409 is digitally balanced in base 3, because in such base 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 8248384 + 1946025 = 2872^2 + 1395^2 .

It is a cyclic number.

It is not a de Polignac number, because 10194409 - 2¹¹ = 10192361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10194479) 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, 52452 + ... + 52645.

It is an arithmetic number, because the mean of its divisors is an integer number (2574901).

Almost surely, 2^10194409 is an apocalyptic number.

It is an amenable number.

10194409 is a deficient number, since it is larger than the sum of its proper divisors (105195).

10194409 is an equidigital number, since it uses as much as digits as its factorization.

10194409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105194.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 10194409 is about 3192.8684595517. The cubic root of 10194409 is about 216.8306563880.

The spelling of 10194409 in words is "ten million, one hundred ninety-four thousand, four hundred nine".