161807214 has 16 divisors (see below), whose sum is σ = 323741520. Its totient is φ = 53914560.

The previous prime is 161807213. The next prime is 161807257. The reversal of 161807214 is 412708161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161807213) 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 in 7 ways as a sum of consecutive naturals, for example, 22402 + ... + 28730.

It is an arithmetic number, because the mean of its divisors is an integer number (20233845).

Almost surely, 2^161807214 is an apocalyptic number.

161807214 is an abundant number, since it is smaller than the sum of its proper divisors (161934306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161807214 is a wasteful number, since it uses less digits than its factorization.

161807214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10595.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 161807214 is about 12720.3464575459. The cubic root of 161807214 is about 544.9198479328.

The spelling of 161807214 in words is "one hundred sixty-one million, eight hundred seven thousand, two hundred fourteen".