194431 has 2 divisors, whose sum is σ = 194432. Its totient is φ = 194430.

The previous prime is 194413. The next prime is 194443. The reversal of 194431 is 134491.

Together with previous prime (194413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 194431 - 2¹¹ = 192383 is a prime.

It is a super-2 number, since 2×194431² = 75606827522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97215 + 97216.

It is an arithmetic number, because the mean of its divisors is an integer number (97216).

2¹⁹⁴⁴³¹ is an apocalyptic number.

194431 is a deficient number, since it is larger than the sum of its proper divisors (1).

194431 is an equidigital number, since it uses as much as digits as its factorization.

194431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 22.

The square root of 194431 is about 440.9433070135. The cubic root of 194431 is about 57.9324421484.

It can be divided in two parts, 194 and 431, that added together give a 4-th power (625 = 5⁴).

The spelling of 194431 in words is "one hundred ninety-four thousand, four hundred thirty-one".