10194649 has 4 divisors (see below), whose sum is σ = 10202164. Its totient is φ = 10187136.

The previous prime is 10194607. The next prime is 10194707. The reversal of 10194649 is 94649101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94649101 = 953 ⋅99317.

It can be written as a sum of positive squares in 2 ways, for example, as 1871424 + 8323225 = 1368^2 + 2885^2 .

It is a cyclic number.

It is not a de Polignac number, because 10194649 - 2¹⁵ = 10161881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10194049) 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, 1092 + ... + 4645.

It is an arithmetic number, because the mean of its divisors is an integer number (2550541).

Almost surely, 2^10194649 is an apocalyptic number.

It is an amenable number.

10194649 is a deficient number, since it is larger than the sum of its proper divisors (7515).

10194649 is an equidigital number, since it uses as much as digits as its factorization.

10194649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7514.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 10194649 is about 3192.9060430899. The cubic root of 10194649 is about 216.8323579399.

The spelling of 10194649 in words is "ten million, one hundred ninety-four thousand, six hundred forty-nine".