194236231 has 16 divisors (see below), whose sum is σ = 225264960. Its totient is φ = 164044800.

The previous prime is 194236193. The next prime is 194236243. The reversal of 194236231 is 132632491.

It is a cyclic number.

It is not a de Polignac number, because 194236231 - 2¹⁵ = 194203463 is a prime.

It is a super-2 number, since 2×194236231² = 75455426866170722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 194236193 and 194236202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194236291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181165 + ... + 182233.

It is an arithmetic number, because the mean of its divisors is an integer number (14079060).

Almost surely, 2^194236231 is an apocalyptic number.

194236231 is a deficient number, since it is larger than the sum of its proper divisors (31028729).

194236231 is a wasteful number, since it uses less digits than its factorization.

194236231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434.

The product of its digits is 7776, while the sum is 31.

The square root of 194236231 is about 13936.8658958892. The cubic root of 194236231 is about 579.1309130135.

The spelling of 194236231 in words is "one hundred ninety-four million, two hundred thirty-six thousand, two hundred thirty-one".