171990014 has 32 divisors (see below), whose sum is σ = 316984320. Its totient is φ = 68339808.

The previous prime is 171989989. The next prime is 171990017. The reversal of 171990014 is 410099171.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171990017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5624 + ... + 19380.

It is an arithmetic number, because the mean of its divisors is an integer number (9905760).

Almost surely, 2^171990014 is an apocalyptic number.

171990014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

171990014 is a deficient number, since it is larger than the sum of its proper divisors (144994306).

171990014 is a wasteful number, since it uses less digits than its factorization.

171990014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13832.

The product of its (nonzero) digits is 2268, while the sum is 32.

The square root of 171990014 is about 13114.4963303971. The cubic root of 171990014 is about 556.1190138238.

The spelling of 171990014 in words is "one hundred seventy-one million, nine hundred ninety thousand, fourteen".