214955851 has 4 divisors (see below), whose sum is σ = 234497304. Its totient is φ = 195414400.

The previous prime is 214955849. The next prime is 214955857. The reversal of 214955851 is 158559412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 214955851 - 2¹ = 214955849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214955857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9770710 + ... + 9770731.

It is an arithmetic number, because the mean of its divisors is an integer number (58624326).

Almost surely, 2^214955851 is an apocalyptic number.

214955851 is a deficient number, since it is larger than the sum of its proper divisors (19541453).

214955851 is a wasteful number, since it uses less digits than its factorization.

214955851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19541452.

The product of its digits is 72000, while the sum is 40.

The square root of 214955851 is about 14661.3727529178. The cubic root of 214955851 is about 599.0316333211.

The spelling of 214955851 in words is "two hundred fourteen million, nine hundred fifty-five thousand, eight hundred fifty-one".