194159140 has 96 divisors (see below), whose sum is σ = 480743424. Its totient is φ = 64496640.

The previous prime is 194159129. The next prime is 194159179. The reversal of 194159140 is 41951491.

It is a junction number, because it is equal to n+sod(n) for n = 194159096 and 194159105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1016445 + ... + 1016635.

It is an arithmetic number, because the mean of its divisors is an integer number (5007744).

Almost surely, 2^194159140 is an apocalyptic number.

194159140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194159140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240371712).

194159140 is an abundant number, since it is smaller than the sum of its proper divisors (286584284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

194159140 is a wasteful number, since it uses less digits than its factorization.

194159140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 194159140 is about 13934.0998991682. The cubic root of 194159140 is about 579.0542852069.

The spelling of 194159140 in words is "one hundred ninety-four million, one hundred fifty-nine thousand, one hundred forty".