193811049 has 10 divisors (see below), whose sum is σ = 289520330. Its totient is φ = 129207312.

The previous prime is 193811027. The next prime is 193811063. The reversal of 193811049 is 940118391.

193811049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 169130025 + 24681024 = 13005^2 + 4968^2 .

It is not a de Polignac number, because 193811049 - 2⁹ = 193810537 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 (193811099) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1196284 + ... + 1196445.

It is an arithmetic number, because the mean of its divisors is an integer number (28952033).

Almost surely, 2^193811049 is an apocalyptic number.

It is an amenable number.

193811049 is a deficient number, since it is larger than the sum of its proper divisors (95709281).

193811049 is an equidigital number, since it uses as much as digits as its factorization.

193811049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392741 (or 2392732 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 193811049 is about 13921.6036791743. The cubic root of 193811049 is about 578.7080328825.

The spelling of 193811049 in words is "one hundred ninety-three million, eight hundred eleven thousand, forty-nine".