213537308 has 12 divisors (see below), whose sum is σ = 379268232. Its totient is φ = 105174960.

The previous prime is 213537301. The next prime is 213537319. The reversal of 213537308 is 803735312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213537301) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 398123 + ... + 398658.

It is an arithmetic number, because the mean of its divisors is an integer number (31605686).

Almost surely, 2^213537308 is an apocalyptic number.

It is an amenable number.

213537308 is a deficient number, since it is larger than the sum of its proper divisors (165730924).

213537308 is a wasteful number, since it uses less digits than its factorization.

213537308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796852 (or 796850 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 213537308 is about 14612.9157939133. The cubic root of 213537308 is about 597.7110082624.

The spelling of 213537308 in words is "two hundred thirteen million, five hundred thirty-seven thousand, three hundred eight".