193457471 has 2 divisors, whose sum is σ = 193457472. Its totient is φ = 193457470.

The previous prime is 193457447. The next prime is 193457483. The reversal of 193457471 is 174754391.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-193457471 is a prime.

It is a super-3 number, since 3×193457471³ (a number of 26 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193457371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96728735 + 96728736.

It is an arithmetic number, because the mean of its divisors is an integer number (96728736).

Almost surely, 2^193457471 is an apocalyptic number.

193457471 is a deficient number, since it is larger than the sum of its proper divisors (1).

193457471 is an equidigital number, since it uses as much as digits as its factorization.

193457471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 41.

The square root of 193457471 is about 13908.8989859011. The cubic root of 193457471 is about 578.3558978389.

The spelling of 193457471 in words is "one hundred ninety-three million, four hundred fifty-seven thousand, four hundred seventy-one".