214981899 has 32 divisors (see below), whose sum is σ = 321235200. Its totient is φ = 126783360.

The previous prime is 214981891. The next prime is 214981919. The reversal of 214981899 is 998189412.

It is not a de Polignac number, because 214981899 - 2³ = 214981891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (214981891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211717 + ... + 212729.

It is an arithmetic number, because the mean of its divisors is an integer number (10038600).

Almost surely, 2^214981899 is an apocalyptic number.

214981899 is a deficient number, since it is larger than the sum of its proper divisors (106253301).

214981899 is a wasteful number, since it uses less digits than its factorization.

214981899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195.

The product of its digits is 373248, while the sum is 51.

The square root of 214981899 is about 14662.2610466463. The cubic root of 214981899 is about 599.0558289031.

It can be divided in two parts, 2149 and 81899, that added together give a palindrome (84048).

The spelling of 214981899 in words is "two hundred fourteen million, nine hundred eighty-one thousand, eight hundred ninety-nine".