213270849 has 72 divisors (see below), whose sum is σ = 357418880. Its totient is φ = 122316480.

The previous prime is 213270847. The next prime is 213270859. The reversal of 213270849 is 948072312.

It is not a de Polignac number, because 213270849 - 2¹ = 213270847 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213270847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2699592 + ... + 2699670.

Almost surely, 2^213270849 is an apocalyptic number.

It is an amenable number.

213270849 is a deficient number, since it is larger than the sum of its proper divisors (144148031).

213270849 is a wasteful number, since it uses less digits than its factorization.

213270849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 213270849 is about 14603.7957052268. The cubic root of 213270849 is about 597.4622901803.

The spelling of 213270849 in words is "two hundred thirteen million, two hundred seventy thousand, eight hundred forty-nine".