194801491 has 8 divisors (see below), whose sum is σ = 197375040. Its totient is φ = 192243072.

The previous prime is 194801483. The next prime is 194801507. The reversal of 194801491 is 194108491.

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 194801491 - 2³ = 194801483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 194801491.

It is not an unprimeable number, because it can be changed into a prime (194801441) 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 7 ways as a sum of consecutive naturals, for example, 23401 + ... + 30613.

It is an arithmetic number, because the mean of its divisors is an integer number (24671880).

Almost surely, 2^194801491 is an apocalyptic number.

194801491 is a deficient number, since it is larger than the sum of its proper divisors (2573549).

194801491 is a wasteful number, since it uses less digits than its factorization.

194801491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7565.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 194801491 is about 13957.1304715547. The cubic root of 194801491 is about 579.6921582793.

The spelling of 194801491 in words is "one hundred ninety-four million, eight hundred one thousand, four hundred ninety-one".