171145463 has 2 divisors, whose sum is σ = 171145464. Its totient is φ = 171145462.

The previous prime is 171145433. The next prime is 171145517. The reversal of 171145463 is 364541171.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-171145463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171145433) 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 as a sum of consecutive naturals, namely, 85572731 + 85572732.

It is an arithmetic number, because the mean of its divisors is an integer number (85572732).

Almost surely, 2^171145463 is an apocalyptic number.

171145463 is a deficient number, since it is larger than the sum of its proper divisors (1).

171145463 is an equidigital number, since it uses as much as digits as its factorization.

171145463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 171145463 is about 13082.2575651147. The cubic root of 171145463 is about 555.2072520885.

It can be divided in two parts, 1711 and 45463, that added together give a palindrome (47174).

The spelling of 171145463 in words is "one hundred seventy-one million, one hundred forty-five thousand, four hundred sixty-three".