194868491 has 8 divisors (see below), whose sum is σ = 197120304. Its totient is φ = 192623200.

The previous prime is 194868473. The next prime is 194868493.

194868491 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 194868491 - 2¹⁴ = 194852107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194868493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82361 + ... + 84693.

It is an arithmetic number, because the mean of its divisors is an integer number (24640038).

Almost surely, 2^194868491 is an apocalyptic number.

194868491 is a deficient number, since it is larger than the sum of its proper divisors (2251813).

194868491 is a wasteful number, since it uses less digits than its factorization.

194868491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261.

The product of its digits is 497664, while the sum is 50.

The square root of 194868491 is about 13959.5304720467. The cubic root of 194868491 is about 579.7586104103.

The spelling of 194868491 in words is "one hundred ninety-four million, eight hundred sixty-eight thousand, four hundred ninety-one".