194138103 has 16 divisors (see below), whose sum is σ = 263692800. Its totient is φ = 127026240.

The previous prime is 194138071. The next prime is 194138117. The reversal of 194138103 is 301831491.

It is not a de Polignac number, because 194138103 - 2⁵ = 194138071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194138183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34498 + ... + 39728.

It is an arithmetic number, because the mean of its divisors is an integer number (16480800).

Almost surely, 2^194138103 is an apocalyptic number.

194138103 is a deficient number, since it is larger than the sum of its proper divisors (69554697).

194138103 is a wasteful number, since it uses less digits than its factorization.

194138103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5462.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 194138103 is about 13933.3450039824. The cubic root of 194138103 is about 579.0333710829.

Adding to 194138103 its reverse (301831491), we get a palindrome (495969594).

The spelling of 194138103 in words is "one hundred ninety-four million, one hundred thirty-eight thousand, one hundred three".