171099412 has 24 divisors (see below), whose sum is σ = 327287520. Its totient is φ = 77619360.

The previous prime is 171099329. The next prime is 171099413. The reversal of 171099412 is 214990171.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171099413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20514 + ... + 27622.

It is an arithmetic number, because the mean of its divisors is an integer number (13636980).

Almost surely, 2^171099412 is an apocalyptic number.

It is an amenable number.

171099412 is a deficient number, since it is larger than the sum of its proper divisors (156188108).

171099412 is a wasteful number, since it uses less digits than its factorization.

171099412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7671 (or 7669 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 171099412 is about 13080.4973911545. The cubic root of 171099412 is about 555.1574501202.

The spelling of 171099412 in words is "one hundred seventy-one million, ninety-nine thousand, four hundred twelve".