171078345 has 32 divisors (see below), whose sum is σ = 307175040. Its totient is φ = 90331200.

The previous prime is 171078331. The next prime is 171078353. The reversal of 171078345 is 543870171.

It is not a de Polignac number, because 171078345 - 2²⁵ = 137523913 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7362 + ... + 19908.

It is an arithmetic number, because the mean of its divisors is an integer number (9599220).

Almost surely, 2^171078345 is an apocalyptic number.

171078345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

171078345 is a deficient number, since it is larger than the sum of its proper divisors (136096695).

171078345 is a wasteful number, since it uses less digits than its factorization.

171078345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12662 (or 12656 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 171078345 is about 13079.6920835316. The cubic root of 171078345 is about 555.1346641817.

It can be divided in two parts, 17107 and 8345, that added together give a palindrome (25452).

The spelling of 171078345 in words is "one hundred seventy-one million, seventy-eight thousand, three hundred forty-five".