213612433 has 8 divisors (see below), whose sum is σ = 224489408. Its totient is φ = 203004144.

The previous prime is 213612403. The next prime is 213612439. The reversal of 213612433 is 334216312.

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 213612433 - 2⁵ = 213612401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213612398 and 213612407.

It is not an unprimeable number, because it can be changed into a prime (213612439) 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, 65541 + ... + 68722.

It is an arithmetic number, because the mean of its divisors is an integer number (28061176).

Almost surely, 2^213612433 is an apocalyptic number.

It is an amenable number.

213612433 is a deficient number, since it is larger than the sum of its proper divisors (10876975).

213612433 is a wasteful number, since it uses less digits than its factorization.

213612433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134343.

The product of its digits is 2592, while the sum is 25.

The square root of 213612433 is about 14615.4860678665. The cubic root of 213612433 is about 597.7810940242.

Adding to 213612433 its reverse (334216312), we get a palindrome (547828745).

The spelling of 213612433 in words is "two hundred thirteen million, six hundred twelve thousand, four hundred thirty-three".