214542289 has 18 divisors (see below), whose sum is σ = 240232518. Its totient is φ = 191505600.

The previous prime is 214542283. The next prime is 214542311. The reversal of 214542289 is 982245412.

It can be written as a sum of positive squares in 3 ways, for example, as 13838400 + 200703889 = 3720^2 + 14167^2 .

It is not a de Polignac number, because 214542289 - 2⁹ = 214541777 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214542283) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 161749 + ... + 163069.

It is an arithmetic number, because the mean of its divisors is an integer number (13346251).

Almost surely, 2^214542289 is an apocalyptic number.

It is an amenable number.

214542289 is a deficient number, since it is larger than the sum of its proper divisors (25690229).

214542289 is a wasteful number, since it uses less digits than its factorization.

214542289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409 (or 1365 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 214542289 is about 14647.2621673813. The cubic root of 214542289 is about 598.6472198613.

The spelling of 214542289 in words is "two hundred fourteen million, five hundred forty-two thousand, two hundred eighty-nine".