194097961 has 4 divisors (see below), whose sum is σ = 194136912. Its totient is φ = 194059012.

The previous prime is 194097949. The next prime is 194097983. The reversal of 194097961 is 169790491.

194097961 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 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 194097961 - 2²³ = 185709353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194097941) 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, 10675 + ... + 22408.

It is an arithmetic number, because the mean of its divisors is an integer number (48534228).

Almost surely, 2^194097961 is an apocalyptic number.

It is an amenable number.

194097961 is a deficient number, since it is larger than the sum of its proper divisors (38951).

194097961 is an equidigital number, since it uses as much as digits as its factorization.

194097961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38950.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 194097961 is about 13931.9044283257. The cubic root of 194097961 is about 578.9934593578.

The spelling of 194097961 in words is "one hundred ninety-four million, ninety-seven thousand, nine hundred sixty-one".