194289481 has 8 divisors (see below), whose sum is σ = 208789920. Its totient is φ = 180130368.

The previous prime is 194289457. The next prime is 194289503. The reversal of 194289481 is 184982491.

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

It is a de Polignac number, because none of the positive numbers 2^k-194289481 is a prime.

It is a super-2 number, since 2×194289481² = 75496804854498722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (194289401) 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, 84151 + ... + 86428.

It is an arithmetic number, because the mean of its divisors is an integer number (26098740).

Almost surely, 2^194289481 is an apocalyptic number.

It is an amenable number.

194289481 is a deficient number, since it is larger than the sum of its proper divisors (14500439).

194289481 is a wasteful number, since it uses less digits than its factorization.

194289481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170663.

The product of its digits is 165888, while the sum is 46.

The square root of 194289481 is about 13938.7761657902. The cubic root of 194289481 is about 579.1838312276.

The spelling of 194289481 in words is "one hundred ninety-four million, two hundred eighty-nine thousand, four hundred eighty-one".