212445535 has 8 divisors (see below), whose sum is σ = 255766896. Its totient is φ = 169401600.

The previous prime is 212445529. The next prime is 212445547. The reversal of 212445535 is 535544212.

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

It is not a de Polignac number, because 212445535 - 2¹¹ = 212443487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212445497 and 212445506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67666 + ... + 70735.

It is an arithmetic number, because the mean of its divisors is an integer number (31970862).

Almost surely, 2^212445535 is an apocalyptic number.

212445535 is a deficient number, since it is larger than the sum of its proper divisors (43321361).

212445535 is a wasteful number, since it uses less digits than its factorization.

212445535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138713.

The product of its digits is 24000, while the sum is 31.

The square root of 212445535 is about 14575.5114833065. The cubic root of 212445535 is about 596.6906088136.

Adding to 212445535 its reverse (535544212), we get a palindrome (747989747).

The spelling of 212445535 in words is "two hundred twelve million, four hundred forty-five thousand, five hundred thirty-five".