214889451 has 24 divisors (see below), whose sum is σ = 342314640. Its totient is φ = 119472192.

The previous prime is 214889429. The next prime is 214889471. The reversal of 214889451 is 154988412.

It is not a de Polignac number, because 214889451 - 2¹⁵ = 214856683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (214889471) 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 23 ways as a sum of consecutive naturals, for example, 14316 + ... + 25193.

It is an arithmetic number, because the mean of its divisors is an integer number (14263110).

Almost surely, 2^214889451 is an apocalyptic number.

214889451 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

214889451 is a deficient number, since it is larger than the sum of its proper divisors (127425189).

214889451 is a wasteful number, since it uses less digits than its factorization.

214889451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39563 (or 39556 counting only the distinct ones).

The product of its digits is 92160, while the sum is 42.

The square root of 214889451 is about 14659.1081243028. The cubic root of 214889451 is about 598.9699465506.

The spelling of 214889451 in words is "two hundred fourteen million, eight hundred eighty-nine thousand, four hundred fifty-one".