194190049 has 4 divisors (see below), whose sum is σ = 194220180. Its totient is φ = 194159920.

The previous prime is 194190047. The next prime is 194190083. The reversal of 194190049 is 940091491.

194190049 is digitally balanced in base 2, 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, and also an emirpimes, since its reverse is a distinct semiprime: 940091491 = 673 ⋅1396867.

It can be written as a sum of positive squares in 2 ways, for example, as 119246400 + 74943649 = 10920^2 + 8657^2 .

It is a cyclic number.

It is not a de Polignac number, because 194190049 - 2¹ = 194190047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194190047) 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, 1054 + ... + 19735.

It is an arithmetic number, because the mean of its divisors is an integer number (48555045).

Almost surely, 2^194190049 is an apocalyptic number.

It is an amenable number.

194190049 is a deficient number, since it is larger than the sum of its proper divisors (30131).

194190049 is an equidigital number, since it uses as much as digits as its factorization.

194190049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30130.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 194190049 is about 13935.2089686520. The cubic root of 194190049 is about 579.0850109288.

The spelling of 194190049 in words is "one hundred ninety-four million, one hundred ninety thousand, forty-nine".