213185835 has 24 divisors (see below), whose sum is σ = 370734624. Its totient is φ = 113326080.

The previous prime is 213185813. The next prime is 213185839. The reversal of 213185835 is 538581312.

It is not a de Polignac number, because 213185835 - 2⁵ = 213185803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213185835.

It is not an unprimeable number, because it can be changed into a prime (213185839) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6379 + ... + 21611.

It is an arithmetic number, because the mean of its divisors is an integer number (15447276).

Almost surely, 2^213185835 is an apocalyptic number.

213185835 is a deficient number, since it is larger than the sum of its proper divisors (157548789).

213185835 is a wasteful number, since it uses less digits than its factorization.

213185835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15555 (or 15552 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 213185835 is about 14600.8847334674. The cubic root of 213185835 is about 597.3828928477.

The spelling of 213185835 in words is "two hundred thirteen million, one hundred eighty-five thousand, eight hundred thirty-five".