161863214 has 16 divisors (see below), whose sum is σ = 250970496. Its totient is φ = 78213600.

The previous prime is 161863211. The next prime is 161863231. The reversal of 161863214 is 412368161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161863211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62024 + ... + 64580.

It is an arithmetic number, because the mean of its divisors is an integer number (15685656).

Almost surely, 2^161863214 is an apocalyptic number.

161863214 is a deficient number, since it is larger than the sum of its proper divisors (89107282).

161863214 is a wasteful number, since it uses less digits than its factorization.

161863214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3611.

The product of its digits is 6912, while the sum is 32.

The square root of 161863214 is about 12722.5474650323. The cubic root of 161863214 is about 544.9827046106.

The spelling of 161863214 in words is "one hundred sixty-one million, eight hundred sixty-three thousand, two hundred fourteen".