213245235 has 72 divisors (see below), whose sum is σ = 432335904. Its totient is φ = 95247360.

The previous prime is 213245233. The next prime is 213245237. The reversal of 213245235 is 532542312.

It is a happy number.

213245235 is a `hidden beast` number, since 2 + 132 + 4 + 523 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (213245233) and next prime (213245237).

It is not a de Polignac number, because 213245235 - 2¹ = 213245233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213245199 and 213245208.

It is not an unprimeable number, because it can be changed into a prime (213245233) 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 71 ways as a sum of consecutive naturals, for example, 884715 + ... + 884955.

Almost surely, 2^213245235 is an apocalyptic number.

213245235 is an abundant number, since it is smaller than the sum of its proper divisors (219090669).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213245235 is a wasteful number, since it uses less digits than its factorization.

213245235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 309 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 213245235 is about 14602.9187151062. The cubic root of 213245235 is about 597.4383706560.

Adding to 213245235 its reverse (532542312), we get a palindrome (745787547).

The spelling of 213245235 in words is "two hundred thirteen million, two hundred forty-five thousand, two hundred thirty-five".