194143900 has 36 divisors (see below), whose sum is σ = 443469880. Its totient is φ = 73569600.

The previous prime is 194143879. The next prime is 194143909. The reversal of 194143900 is 9341491.

194143900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194143909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49191 + ... + 52990.

Almost surely, 2^194143900 is an apocalyptic number.

194143900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194143900 is an abundant number, since it is smaller than the sum of its proper divisors (249325980).

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

194143900 is a wasteful number, since it uses less digits than its factorization.

194143900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102214 (or 102207 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 194143900 is about 13933.5530285710. The cubic root of 194143900 is about 579.0391343737.

The spelling of 194143900 in words is "one hundred ninety-four million, one hundred forty-three thousand, nine hundred".