194090149 has 8 divisors (see below), whose sum is σ = 222878880. Its totient is φ = 167158800.

The previous prime is 194090107. The next prime is 194090161. The reversal of 194090149 is 941090491.

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 194090149 - 2¹¹ = 194088101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194090179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464122 + ... + 464539.

It is an arithmetic number, because the mean of its divisors is an integer number (27859860).

Almost surely, 2^194090149 is an apocalyptic number.

194090149 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

194090149 is a deficient number, since it is larger than the sum of its proper divisors (28788731).

194090149 is a wasteful number, since it uses less digits than its factorization.

194090149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928691.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 194090149 is about 13931.6240618242. The cubic root of 194090149 is about 578.9856915317.

The spelling of 194090149 in words is "one hundred ninety-four million, ninety thousand, one hundred forty-nine".