194460491 has 4 divisors (see below), whose sum is σ = 198982872. Its totient is φ = 189938112.

The previous prime is 194460481. The next prime is 194460503. The reversal of 194460491 is 194064491.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 194460491 - 2¹⁰ = 194459467 is a prime.

It is a super-2 number, since 2×194460491² = 75629765119922162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194460481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2261126 + ... + 2261211.

It is an arithmetic number, because the mean of its divisors is an integer number (49745718).

Almost surely, 2^194460491 is an apocalyptic number.

194460491 is a deficient number, since it is larger than the sum of its proper divisors (4522381).

194460491 is an equidigital number, since it uses as much as digits as its factorization.

194460491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4522380.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 194460491 is about 13944.9091427660. The cubic root of 194460491 is about 579.3537103536.

The spelling of 194460491 in words is "one hundred ninety-four million, four hundred sixty thousand, four hundred ninety-one".