213351489 has 20 divisors (see below), whose sum is σ = 343228116. Its totient is φ = 131292576.

The previous prime is 213351487. The next prime is 213351497. The reversal of 213351489 is 984153312.

213351489 is a `hidden beast` number, since 2 + 133 + 514 + 8 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 68558400 + 144793089 = 8280^2 + 12033^2 .

It is not a de Polignac number, because 213351489 - 2¹ = 213351487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213351487) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 100254 + ... + 102359.

Almost surely, 2^213351489 is an apocalyptic number.

It is an amenable number.

213351489 is a deficient number, since it is larger than the sum of its proper divisors (129876627).

213351489 is a wasteful number, since it uses less digits than its factorization.

213351489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202638 (or 202629 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 213351489 is about 14606.5563703427. The cubic root of 213351489 is about 597.5375829957.

The spelling of 213351489 in words is "two hundred thirteen million, three hundred fifty-one thousand, four hundred eighty-nine".