213235351 has 4 divisors (see below), whose sum is σ = 243697552. Its totient is φ = 182773152.

The previous prime is 213235349. The next prime is 213235357. The reversal of 213235351 is 153532312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213235351 - 2¹ = 213235349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213235357) 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 3 ways as a sum of consecutive naturals, for example, 15231090 + ... + 15231103.

It is an arithmetic number, because the mean of its divisors is an integer number (60924388).

Almost surely, 2^213235351 is an apocalyptic number.

213235351 is a deficient number, since it is larger than the sum of its proper divisors (30462201).

213235351 is an equidigital number, since it uses as much as digits as its factorization.

213235351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30462200.

The product of its digits is 2700, while the sum is 25.

The square root of 213235351 is about 14602.5802856892. The cubic root of 213235351 is about 597.4291400127.

Adding to 213235351 its reverse (153532312), we get a palindrome (366767663).

The spelling of 213235351 in words is "two hundred thirteen million, two hundred thirty-five thousand, three hundred fifty-one".