213430249 has 8 divisors (see below), whose sum is σ = 225504000. Its totient is φ = 201440592.

The previous prime is 213430247. The next prime is 213430253. The reversal of 213430249 is 942034312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213430249 - 2¹ = 213430247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213430241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15769 + ... + 25990.

It is an arithmetic number, because the mean of its divisors is an integer number (28188000).

Almost surely, 2^213430249 is an apocalyptic number.

It is an amenable number.

213430249 is a deficient number, since it is larger than the sum of its proper divisors (12073751).

213430249 is a wasteful number, since it uses less digits than its factorization.

213430249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42047.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 213430249 is about 14609.2521711414. The cubic root of 213430249 is about 597.6111021610.

The spelling of 213430249 in words is "two hundred thirteen million, four hundred thirty thousand, two hundred forty-nine".