194718933 has 6 divisors (see below), whose sum is σ = 281260694. Its totient is φ = 129812616.

The previous prime is 194718899. The next prime is 194718941. The reversal of 194718933 is 339817491.

It can be written as a sum of positive squares in only one way, i.e., 148791204 + 45927729 = 12198^2 + 6777^2 .

It is not a de Polignac number, because 194718933 - 2⁶ = 194718869 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 (194718983) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10817710 + ... + 10817727.

Almost surely, 2^194718933 is an apocalyptic number.

It is an amenable number.

194718933 is a deficient number, since it is larger than the sum of its proper divisors (86541761).

194718933 is a wasteful number, since it uses less digits than its factorization.

194718933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21635443 (or 21635440 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 194718933 is about 13954.1726017704. The cubic root of 194718933 is about 579.6102544098.

The spelling of 194718933 in words is "one hundred ninety-four million, seven hundred eighteen thousand, nine hundred thirty-three".