213539106 has 24 divisors (see below), whose sum is σ = 469434672. Its totient is φ = 64708600.

The previous prime is 213539077. The next prime is 213539147. The reversal of 213539106 is 601935312.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146340 + ... + 147791.

It is an arithmetic number, because the mean of its divisors is an integer number (19559778).

Almost surely, 2^213539106 is an apocalyptic number.

213539106 is an abundant number, since it is smaller than the sum of its proper divisors (255895566).

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

213539106 is a wasteful number, since it uses less digits than its factorization.

213539106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294158 (or 294147 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 213539106 is about 14612.9773147022. The cubic root of 213539106 is about 597.7126858481.

The spelling of 213539106 in words is "two hundred thirteen million, five hundred thirty-nine thousand, one hundred six".