213183243 has 48 divisors (see below), whose sum is σ = 382077696. Its totient is φ = 111533760.

The previous prime is 213183221. The next prime is 213183253. The reversal of 213183243 is 342381312.

213183243 is a `hidden beast` number, since 21 + 318 + 324 + 3 = 666.

It is not a de Polignac number, because 213183243 - 2¹² = 213179147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213183203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 106296 + ... + 108282.

It is an arithmetic number, because the mean of its divisors is an integer number (7959952).

Almost surely, 2^213183243 is an apocalyptic number.

213183243 is a deficient number, since it is larger than the sum of its proper divisors (168894453).

213183243 is a wasteful number, since it uses less digits than its factorization.

213183243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144 (or 2141 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 213183243 is about 14600.7959714531. The cubic root of 213183243 is about 597.3804717632.

The spelling of 213183243 in words is "two hundred thirteen million, one hundred eighty-three thousand, two hundred forty-three".